I'm not sure if this is truly a "sketch" but here it is. If you can't tell, that is a baby dragon snacking between mealtimes... because I like dragons. And cookies. And it's important to be passionate about your work.
This animation, called "Replay," uses a lot of close ups before (literally) showing the larger picture. It forces the audience to make conjectures, which I thought was a good way to capture attention. No one likes to be spoon fed. I don't expect to do anything like this anytime soon... but it's definitely something to aim for.
This photo manipulation, titled "Victory" and created by deviantart user Eisblume, caught my attention because not only is it visually stimulating (what gorgeous coloring!) but creative in conveying an underlying concept-- Imagine a day when Nature sheds the harness forced upon her by mankind. The tables turn. It provides food for thought... and that's inspiring.