First, the better of the two:
World’s Finest. Featuring Batman and Superman. I really liked this one - although Batman’s costume is pretty crap, the rest is quite well done. Superman, Batman and Luthor all could have been better cast, from a looks perspective (particularly Luthor), but all in all, I’m quite impressed with this one. It’s definitely up there with Greyson.
And, of course, Green Arrow. (Warning - badly designed site.) Seems to be based mostly on Grell’s version. I’m not as impressed with this one - the first few shots of Ollie are…silly, and not really in character, honestly. You’ll know what I mean when you see it. Also, I don’t remember him ever killing near as casually as he does here.