The odd thing is that is a Pujols "sit down" signature and not a rushed game signature-the 2 signatures look nothing alike. Most sit down signatures in the last 2 years (since Trout has played in the MLB) are authenticated by his company. I would ask the seller how he got Pujols, and if he says before a game, that is a warning sign that signature is probably not good. The rest of the signature looks pretty spot on.
The only thing possibly odd IMHO with the Pujols is that the top of the A and P doen't curve left. Here is my IP sit down signature I got from him at a charity signing in 2010 if it helps-
