I shouldn't be posting loli since this isn't the board for that but I feel an honorable mention would be Anyannko. He's changed a lot and does work for Comic LO now, and his starting point isn't as immediately in-your-face bad as the others mentioned, but in comparison to what he makes now it was definitely a rocky start. Very wonky proportions in an attempt to be more realistic, and the flat anime faces look a little funny on those bodies.

Still, very cute I think and I really enjoy both eras.