Color Blending in Photoshop
One of the issues in using Photoshop for artwork, involves the blending of colors during brush strokes. The solution is found under Color Dynamics in the brush palette. The first setting allows you to set the jitter between the foreground and background colors. This will create color variations while you paint.
A favorite setting of mine involves setting the Control option to “Fade”. This will blend the foreground color into the background color as you paint, creating a color gradient during the brush stroke. The number adjacent to the “Fade” setting sets how quickly or slowly the background color blends into the foreground color.