"How to Paint a Floral with Masking" as taught by Ron Pratt in his watercolor class at Rossmoor.
Access Ron's website www.ronaldpratt.com
Start with a good pencil sketch
First, create a very loose sketch on scratch paper to work out your composition. Once you have that determined, lightly but clearly sketch in your main flower shapes. If drawing is not your forte', it's okay to create some poor-man's transfer paper (by putting a heavy layer of graphite on the back of a printed out flower you like) and tracing it on. Like Ron says, "Hey, we are in painting class, not drawing class. Let's get to painting!
Apply Masking (also called Frisket)

Apply masking around the outside edges of your flower shape with an OLD brush and put a little bit of dish soap on first. (Remember, never use a good brush for this, the masking never completely washes out.) Once all the flower shape edges are complete, pull the mask down the stems. After that, fill in the center of your flower shapes with a generous amount of mask. At this stage, you can revert to using a Q-tip so you can apply more masking to a larger area and get the job done more quickly. When finished, tip your page into the light and check for areas you may have missed with the masking. Fill in those holes.
Thoughts on masking... Whenever we use masking, we create a tighter style in our painting. There are many ways to paint; think about the style you want before you start painting.
Tip 1: Be careful how you hold your brush when masking. If you want straight, solid and clean lines, hold your brush perpendicular to the paper. If you want a jagged edge, hold the brush on its side.
Tip 2: When masking very large areas with generous amounts of masking fluid, it's best to let it dry overnight but you can speed up the process with a hairdryer if you are in a hurry.
Tip 3: Blot your wet paint off the dried mask to avoid streaking your painting when you remove mask.
Color Mixing Time

Establish your color palette for the painting. Ron uses a variety of greens, blues, yellows and a red for his (see exact hues in session notes at the bottom of the page.)
Mix up generous, thicker puddles of color to be used for the background and also for the flowers. Liquidize your paint with just enough water to thin it out. Squeeze excess paint from the brush when you are done to save pigment.
Colorful Background Wash
Wet the entire paper. Check for uniform coverage and that there are no water puddles before you lay down paint.

Drop in your background paints. Work from light to dark, starting with yellow. Add in some various tones of green. Create variations and contrast - light to dark, hue to hue - to develop interest. Drop in a few blues and some very dark greens as well. When all the paint is dropped in, tilt your paper to get a nicely blended effect for the background. Tilting the board creates a nice airbrushed effect for the background; like a soft focused photographic background.
Don't overwork your background! 99.9% of the time the fix is worse than the original. Leave it until you are done and if in the end you still want to make changes, you can.

Then!...stroke in a few impressionistic green leaves around the flower stems. Use different hues of green and varying values as before.
Then!...take a thirsty brush and PULL paint in leaf shapes as well. You are trying to create visual interest and variation does that.
Then!...sprinkle a little salt in the background to create more interesting effects. Use it quite sparingly. And remember, it only works if the paint is still just slightly wet.
Removing the Mask
Remove your masking with the remover tool. Remember to wipe any dry excess paint from the masking before you pull it off or you may drag and smear paint into your clean flower shapes.
Painting in the Flower Shapes

Next we paint in the flower petals one at a time with a wet-in-wet method. Wet a petal shape with clean water NEAR the edge but not completely up to it. By leaving the edge dry, you wil be able to bring pigment up to the edge of the background without reactivating the colors in the background and dragging them into the flower shape.
My most important tool is my towel! When putting in those red highlights, use a slightly drier brush.
Pick up a very light yellow and paint the top of the petal shape. Next, pick up a darker shade of yellow and drop it under the light yellow. Once you've got the yellows in, pick up the red. If your brush is too wet, the red will spread too far. Put in those red highlights. When finished, move on to another petal (but not one next to where you are working now.) As you do flower petals that are further in shadow or work on petals that are inside the shape, adjust your dark shades to even darker yellows, including the darkest of yellow ochre. This will give the illusion of depth and add more shape to the flower forms.
Painting the Stems and Bulbs

After you've got all the flower shapes painted in, move on to the buds and stems. To paint a bud, wet the shape as we've done before and drop in the light yellow on the tip. Then, instead of more yellow, pick up a light green and blend that in. Then, choose a very deep dark green for the base of the bud, paint that in and pull that color down the dark side of your stem. Try to do this pull in one long stroke to keep it fresh and clean. Repeat for all the buds in your composition.
For stems, continue as you did before with the buds. Choose one side that will be the light side and the other will be the side in shadow. Wet the stem with clean water. Then pick up a light green and pull that color down the light side of the stem. Next, pick up the dark green and pull that down the opposite side. Finally, take a clean brush and pull it down the center of the two colors to blend them together. Remember to put the very darkest green underneath the head of the flower so that these are in shadow.
#1 confession of professional watercolorists, "Oh Lord! I wish I hadn't gone back into it."
But if you really need to, you can adjust areas with a little extra paint mixed in with white if you need coverage. Straighten your stems with this mix on the light side. On the dark side, just put a bit more of the dark value green on the brush and pull it down the stem.
Ron's finished painting
My finished painting (to come) -
SESSION NOTES
Colors Ron used: Bright Green #1, Bright Green #2, Hookers Green (used straight & also mixed with ultramarine.) Deep Ultramarine, Permanent Yellow Deep, Lemon Yellow, Permanent Red. Cerulean
Brushes and tools: 140# Arches watercolor paper, Flat and round brushes, salt, Haki brush
Labels: Ron Pratt Class Sessions