Since I had 6 cards left to sell, and a deadline to get them approved by Upper Deck/Marvel, I went ahead and tried doing my first 2 card set, making one image across 2 cards, and offering that on eBay. I was pleased to sell those cards within a couple hours of posting via buy it now, a set of the classic Uncanny X-Men, so I decided to work up another 2 card set for eBay. This time I did a grouping of Avengers women, and those sold by the next morning. With 2 cards left, I went ahead and did a third 2 card set, with this last being of women from the X-Men. Those cards are currently (at this time) on eBay, HERE and HERE
Here are all of the MM2 artist proofs I've done (the final 10th card is commissioned, and I'll add it here once it's completed):
You can view most of my 200 MM2 series sketch cards HERE (or in my DeviantArt gallery)
I did 75 sketch cards for series 3, which you can view HERE, and will have 10 artist proof cards to share from that eventually as well. I've currently only sold one of those, so nine are still available (email me if interested). Just as with the MM2 ap's, I'll start auctioning off my own custom works on eBay...
Since the artist proof's have been working out pretty well, I look forward to working on more sketch cards in the future. It's not only fun to draw Marvel characters, as I'm a Marvel guy from way back, but working on the 2.5x3.5" canvas, in live media, is very interesting too (as opposed to working digitally on an open canvas). Not to mention, there are plenty of other cool card/licensed properties out there!