Seriously

I don't know why, maybe it's because I'm in my third trimester & I get pissed off easily, but this is so frustrating. Litterally been looking at this freaking picture for the last hour trying to decide. They both look like they match the longer you stare at it. At first I thought it was the one on the right. But then after awhile it started to look like the one on the left. Now, I'm totally confused. 
What do you think?