Logo Design for Blazing Yucca

About Blazing Yucca: Blazing Yucca is the publishing name under which I will self-publish my novels. Project Description: I am looking for a logo that is a Yucca Plant on fire. Here's an example of a yucca plant [login to view URL] It is more detailed than what I need, because I need a logo that is simplified enough that it will look good when printed on the spine of a book. For the fire, I don't want it to be a generic flame sitting behind the yucca plant image. I'd like the fire to look like it is coming from the plant. Here are a few examples of flames that I like (set against a bush or tree in these examples) [login to view URL] [login to view URL] Here's a minimalist example of a burning tree that I like. I don't know if it's possible to make one out of a yucca plant that looks as good. But here it is: [login to view URL] I need the logo to have 6 simple variations. Because this logo will be put on the spine of books, which will have a variety of cover art designs, I need the logo to be flexible. 1. Full color with traditional yellow-orange-red flames. 2. Full color with cool-colored flames (think Hades, from Disney's Hercules) 3. Black silhouette version 4. Inverted silhouette -- black background but white silhouette 5. White background with transparent silhouette 6. Black background with transparent silhouette I have had a few graphic designers design some things, and I have a couple examples that are decent. But my frustration is that they are ignoring what I want: a logo that has six color variations. I keep getting 3-4 completely styles. I'm open to looking at a couple of different styles in rough concept art, but in the end I need the 1 logo that has the six color variations.