More diversity in sci-fi webcomix? Yes please: Athena Wheatley, or Warp & Weft features a black female scientist from the 19th century time-travelling to 9283. Fun, and looks good: Moebius meets Futurama meets Adventure Time (and sexy too! occasionaly cartoonishly NSFW)
Hand drawn 3D comics lettering: Stone Type. Classic front page lettering from Superman, The Spirit, Sgt. Rock, La Garage Hermetique, The Incredible Hulk &c.