Banners and images for an affiliate program

I need some banner images that I can use as header for my website and that I can use as images for my affiliates to use. Here is an example of the kinds of things I want to create. [login to view URL] (see the banners section) I do not need you to put words on them as these will change depending on the situation that I am using them in. I need a wide short one, a long thin one and a small square one with a common theme throughout. Here is my website (very rough right now) so you can see the sort of product I am producing and the topic area. [login to view URL] I would like something that has some colour and crispness to it - at the same time divorce is not a "fun" topic! My thought is to incorporate stylized butterfly images - as my other other web site [login to view URL] uses that motif in it's logo. THese are different but related product lines.