I’ve been mainly drawing with graphite pencils, and am pretty inexperienced in drawing with colored pencils. I want to get some more practice in, but I don’t know exactly what to look for if I need to buy a new set. I need 12-24 pencils, and can’t buy anything very expensive at the moment. I do currently have a set of Prismacolor Premier pencils. Are they a good set to at least start out with, or should I find something else?