I don't like to sketch anything out, myself. All my recent drawings were freehand, although I roughly outlined parts of them in places. If I plan out a drawing too much, it starts to feel too much like school work. :V
I'm kind of excited to know that you freehand stuff too. I have tried to take elements from your art and put them in mine because I really like your bright landscapes and one day hope I can make such dynamic colors.
Your work is always so stunning. Never stop doing digital art. I wish I knew how you got the effects that you do. Your art is always bright, has depth, reflection, weight, and a gorgeous sense of world that I don't find that often. Each piece seems to be a small portion of a beautiful world.