well, its not my cup of tea but, they are very nicley drawn ladies. The basic shapes seem alright to me, the hands at that size coud be a bit more focused but thats just a personal preference. I do like the colors. A lot. I enjoy soft tones.
Since they are just, from what Im guessing, free sketches, I assume they are going to look very nice. I like paintillery. GO with that lol.
My favorite model is the one with panties. She looks like she is just getting up for the day and well, is like "GUYS, WHAT DID I SAY! GOD DAMIT!" lol.