Putting images near ads is said to increase your CTR (Click Through Rate), so why shouldn’t we give it a try?
If you are a WordPress user, you can use the AdSense Beautifier plugin, which beautifies your Adsense Ads by placing images near them.
Ps. you could do the same thing manually but why bother, if you have a plugin that does all the work for you available? If you do it manually, be aware of the fact that you must put a visible border between the images and the ads, to avoid confusion and invalid clicks.
Do you use AdSense?