Well, I figured out painting in photoshop prevents the muddy stuff a lot more then Sai does in general. Sai blends soo smoothly that is kinda bad XD? So that would be my tip. I find Sai a lot easier for sketching ect, but I prefer PS for proper painting xD! And any good tutorial? I got one on my pc, but friend send it to me
it is a huge zip file of 1 gig, so I can't just send it over ;_;