Some things I noticed are:
Those backgrounds are a bit much, they detract from the ads.
The first set only has one ad per page when you are generally allowed 3
Subdomains arent allowed for free sites at quite a lot of linklists
Your ad text could be bigger in many cases, its often the text that grabs em, and you seem to be writing good text so make better use of it.
Hardcore on the warning page isn't accepted at a lot of ll's either.
Hope this helps a bit
