I don't have a large selection of other people's work.
Really, I only have two.
The cons that I do get to go to don't generally give me much of a chance to get any original art. Except Wizard World, but I usually find myself with not enough money to afford one there.
Here's what I have so far.
This one is Fire (of JUSTICE LEAGUE INTERNATIONAL and CHECKMATE) by Joe Singleton.
Singleton is a very accomplished illustrator and his other works can be seen here.
And this one is Jose Roberto Mesarina's rendering of his creator-owned character, Unbelievable Laundry Detergent Man.
He has a small press comic featuring the hero and you can find out more at his website.