They're not on blanks, but here are my two Lee's.
http://www.comicartfans.com/GalleryDetailSearch.asp?Artist=Jim+Lee&GCat=42920
The Batman was a super quickie from NYCC 2 years ago. The Wolvie, Jim took some more time with and was a lot more detailed. Sketch wise it seems like Jim likes to draw casual style Wolvie as opposed to X-Men suited Wolvie. Maybe since he works with DC now, he can say that casual suited Wolvie is just some random cititzen in the DC universe as opposed to a Marvel character.