Man those small thumbs are amazing! great use of color! You should check out magic the gathering art - http://25.media.tumblr.com/tumblr_lucbx6hQky1qjh5yso1_500.jpg http://media.wizards.com/images/magic/daily/ld/ld108_2010Art.jpg http://www.gatheringmagic.com/wp-content/uploads/2010/03/127488_CN.jpg…
I could explain it all to you but really there is no quick way to do it. You generally have to discover it for yourself for it to really sink in, but I would probably start with building some perspective guidelines, like this - http://media.crazyleafdesign.com/2010/10/one_point_perspective_021.jpg (A simple one-point…