The Sean Connery autograph actually looks pretty typical to me. I am not familiar with Lois Maxwell’s autograph, but it may have been signed at a comic convention, or similar event.
I received this from a reputable dealer BBC Collectibles. I've seen a lot of exemplars of Lois Maxwell's signature and it looks dead on. Also the photo itself looks aged enough. Maxwell signed it in 2004 before she passed away in '07.