I agree with Sherif, definitely remove that image. That is against Google's rules to have pictures aligned next to the ads.
This is just a personal opinion, I don't like putting my ads in boxes. Some argue it makes them stand out but that's exactly why I don't use boxes. I like the ads to blend with my content so they don't shout, "Hey, these are Google ads, Click me!!"

I think people are getting smarter about recognizing them so highlighting them makes them seem more promotional.
This lady told me once she had no idea I was getting paid for the ads and she clicked on one thinking it was part of my content... and that's the whole point in my opinion.