nice work! The first one is a little messy where it should be more refined (I don't know if I'd be able to recognize this character in any other picture). The ship in the second one is awesome - I'd love to see its scale by comparing it to something else.
So is this some school project...
Harder rendering, a better grasp on colour theory and a clearer form and function in each image. Also, this whiffs of plug.
CRITIQUE AS YOU WOULD BE CRITIQUED
THE ABOVE LINK IS ALL YOU NEED
http://www.conceptart.org/forums/sho...d.php?t=200044 <- Sketchbook - filled with unhappy things.