I need an 11X17 poster of new book Release

I need an 11X17poster of my new book Release with a dpi 0f 300 Attached is a copy of my poster someone attempted to create however it wasnt what I was looking for. I am looking for something clean with the majority of the poster of Book and a picture of myself including the words Now Available on Amazon Barnes and Noble/ Amazon or [login to view URL] Add below my picture: My Most Heart-Felt Purpose in Life is to demonstrate that you Already Possess The Key to Unlock Your True Purpose, Desire and Aspiration in your Life. -Prince Ambassador