Nice sites, although broken category link on front page of all of them would an issue to look into.
Since your sites are not hardcore you could look into programs such as adultfriendfinder.com or some of the cam girl affiliate programs for revenue and possible free content for your sites.
To avoid copyright issues you can also look into purchasing some inexpensive non-hardcore images from content sellers, I have webmasters, cam girls and phone sex girls that buy this type of content from me for these types of sites.
Feel free to take a look at
http://www.dollarcontent.com
Good Luck to you in your Adult Industry Adventure and it will be just that "An Adventure"