The team at BlogEngine are looking for you to submit all your new themes - To hopefully create a new Theme pack

http://www.dotnetblogengine.net/post/Are-you-a-theme-designer.aspx

The form to submit your forms is here

http://www.dotnetblogengine.net/contact.aspx

If you don't think your theme is up to being submitted directly to BlogEngine - Post it in our Themes forum and let everyone else give you their thoughts