Design for a Book cover + Front and Back

I am working on a book and need a design for the front and back cover. The cover is a dust jacket but all I need is 2 designs - 1 for the front and 1 for back which I can select and insert it into the book making program I am using (Blurb Booksmart). So ideally the 2 designs should be in JPG format The size of the dust jacket is 10 X 8 in and it has to be 300 dpi I think. My apologies as I am new to this. So here's the sort of design I'm looking for. The book is composed of letters asking for forgiveness from a painful relationship. I'm looking for a design which incorporates some sort of tears, and it should also incorporate something cute, I was thinking of a cute teddy bear picture or something along those lines The back cover design idea can be generally anything cute, again I was thinking of playing with the teddy bear theme. if you have any questions, you may reach me at 610-360-3602