The original from Roman Wunderlich's "group pic" art:

And the picture I took yesterday (ignore the lack of left hand):

The front of the shirt:

And the back:

And the source graphics for those who wish to make their own:
Front image used on Cafepress - Original by Liz, colorization by Hraefn, both found here
Back image used on Cafepress
Alternate back image - made by Tarukai
So, whaddya think?

EDIT: added source for front image
EDIT 2: clarified source for front image