I'm a huge Walsh fan, and I've gotten him on countless albums and CDs. At least 25 (sorry, none are for sale).
I don't like the "But Seriously Folks" album much (the signature or the songs on the album). I like "Got Any Gum" a bit more, since he often wrote "how ya doin" on records he signed (and he says this in person when you approach him as well).
The problem with Walsh signatures is this. It's a VERY EASY autograph to forge. So, the first picture yuo showed...I'm not thrilled with how it looks. But...I wouldn't be surprised if it were real, either.
First pic, don't like. Cant see second one well. Save up a bit more money and get a nice no brainer!