Here's a concept sketch showing how George Washington might appear in color. I've sketched this same page probably six times already and it's finally shaping up into something I like. This is not the final image.
The uniform is his colonel's uniform in the Virginia Regiment. Keeping the color scheme in the red-white-blue range we get hints of historic events yet to come.
The spyglass (based on one of Washington's own spyglasses) plays an important role in the story.