Well. . . made some simple design
for the size. . . .since it's vector, you can enlarge it to super big banner size if you want
oh. . .by the way
just asking for clarification. . .
For the :
"winners must provide 300+ DPI proofs"
Does the winner must provide the test print (hard proof),
or the winner can just provide the soft proofed image?
or maybe (sorry), you mean PPI? (the winner just give you final .ai files with layers), from what i read on older posts, some people mistook DPI for PPI
since you say DPI, i think it might have something to do with the printer. . .
sorry for my bad Grammar. . .
Anyway. . thanks to those who remembering me about the "mistake" :p
Edit: centered, thicker border
PS: thanks to those who pointed the mistakes for me