Underpainting may be deemed as an "unnecessary" first step to your artwork, but it is very essential if you want to get things done right.
What is underpainting?
Some artists see it as an optional step, but if you want to produce realistic colors and create a believable light source, underpainting is a step you should not miss.
Develop contrast and color values
The process is simple, but you'd be surprised on the major effects it can have on the rest of your painting.
For instance, if you want to create an illusion of wintertime coldness in your artwork, a blue toned underpainting is best to apply. Likewise, if you're painting a desert scene, a yellow-red toned underpainting will create the feeling of a warm climate.
Using purple toned underpainting is helpful in creating warm layers or for making shadows.
Some handy underpainting tips
Choose your paint wisely too for your underpainting. A poor choice in paint can make your overall artwork muddy and unruly. Make sure it is paint that mixes well and has a high pigment load.
Learn more about underpainting and acrylic painting at Art Smart
Marikina near Eastwood : MWF *9/10/11
Shaw: MWF 2/3/4/5*PM
Batch 2: Apr24-May24
Batch 3: May 29-June 26
8 sessions of 1.5 hours
Shaw : TTh9-10:30& 10:30-12
Mkna near Eastwood:2-3:30&3:30-5PM
Batch 2: Apr 25-May 18
Batch 3: May 30-June 22
SATURDAYS (once a week schedule)
You may do 1 or 2 hours
Marikina: 9/10/11 am
Shaw: 2/3/4pm
(No class on June 12)
http://www.artopiamagazine.com/artopia-magazine/make-your-paintings-pop-with-grisaille-and-underpainting
http://www.jerrysartarama.com/blog/underpainting-why-you-need-to-do-it/