Homestuck definitely. One of the best features of the comic is the blank canvas left by the design. Each fan creates their own canon for each character. They are only circles and rectangles. I have seen headcanons of certain artists that I could never have imagined. Being miles away from the general fanon they still beautiful.

Beyond that, it should be noted that each artist has certain ability with the pencil. I have ease with graphic designs. 

Other influences are PrestonBlair, VivziePop, TimBurton, Studio Ghibli, Disney, Xamag. That one movie Les Triplettes de Belleville. Also random drawings i find out there~