I never knew about this sketchbook project until now. It's great that you were able to share this with us. On to the review....
First if all, the menu was very good, I like how you made different categories like artsy, bbs mod, etc. and that you credited the people that drew the pictures.
Second of all, the variety of each picture was very good, and they were all unique in some way. Plus most of them were drawn very well.
Overall, this is one of the most unique projects on Newgrounds.
Thank you Stamper and Luis!