I never have thought of violets as being hard to focus on, but I've tried this just recently and it's true...it's very hard to focus on african violets .. you did a very nice job here, and at the very least the colors are nice and true.
Purple is something soooo soothing to the eye! But I have found out anything that has a red tone in it, is more difficult to get a sharp photo of...I can never get it right! I tried and tried. But you really got a soft sweet shot here..V
Steve