Thanks for the compliment, I really enjoy doing them. Actually they are two paintings in one. After I carve the images into the wood I give to board two coats of base white then I "splatter paint" with coordinate colors with the yet to be finished product. Often times the splatter painting looks so interesting that I almost hate to paint over it. After the splatter painting I fill in the color of the images. More often than not I shade each section to dimension effect, then I use oil sticks to accent lines and shading.
I'm working on a new style that incorporates the use of a "frame" setting in the board, then do a smaller painting within the "frame". I have high hopes for this style as the sketches look really good (well at least to me).