Community Ads are supposed to be relevant to the community you are advertising on. From the community ad question posted on every meta:
The goal is for future visitors to find out about the stuff your community deems important. This also serves as a way to promote information and resources that are relevant to your own community's interests, both for those already in the community and those yet to join.
I don't see how Arts & Crafts is relevant to most of the sites you are advertising on. For example, the Android Stack Exchange is about technology, not art. The only site it makes sense to advertise on is the Graphics Design site. You should remove the other ads because you are basically spamming uninterested communities.