Thanks! I like to work really quickly in the beginning to stay focused, so my sketches and paintings are usually pretty loose. I'd rather have a good foundation there that implies stuff with selective details to bring out the important parts than photorealistic details all over. I don't use a lot of brushes either, usually just a hard round brush with pressure sensitivy/opacity. Occasionally a calligraphic brush or a soft airbrush for some particular things. I tend to use grunge brushes and stuff like that more in my 3d texturing, though.