#1 (The signed “The Lords and the New Creatures”) is authentic in my opinion. It’s hard to make out the second one, but what I can see of the Morrison signature doesn’t look promising at all. #3 isn’t authentic in my opinion.
I agree with Ballroom. The signed TLATNC is genuine. Items #2, and #3 are not authentic in my opinion. Both of those Morrison sigs are not in Jim's hand. The check signed by Ray is indeed his signature, but it looks to be a copy/scan of the original/genuine check.