I submitted these both a while back and never got a response. I love feedback on all of my designs, so I thought I would post here.
Star Wars/Harley Davidson mash-up. I think it's a cool design and idea, so I hope someone else out there does as well.

http://www.redbubble.com/people/mightyrain/t-shirts/7647214-speeder-bikes
Shaun's plan

http://www.redbubble.com/people/mightyrain/t-shirts/7649665-the-list
Star Wars/Harley Davidson mash-up. I think it's a cool design and idea, so I hope someone else out there does as well.

http://www.redbubble.com/people/mightyrain/t-shirts/7647214-speeder-bikes
Shaun's plan

http://www.redbubble.com/people/mightyrain/t-shirts/7649665-the-list
Perhaps use a light grey instead for the shadow so that you could use in on the paper to create wrinkles or ripples in the paper.
Maybe introduce a faint watermark in the background of the paper like it was a company notepad. What was the name of the store he worked at?