What is the difference between the two...?

[what2writehere]

Hi everyone,
Are there two different types of Diablo 3 betas? Call me paranoid, but recently I bought a Diablo 3 account and it looks like the first image, but all the screen shots I see look like the second. Anybody know why this is? Thanks in advance
http://imgur.com/a/25wea

 

First one looks more real, I don't see why they'd use the WoW PTRs for Diablo.