I don't like it. The drawing is vague & doesn't appear to have anything to do with the subject unless it's a picture of a poisonous plant & if so, this is too subtle for a cover.Here is a link to the proposed cover. Any feedback?
I don't like the block letter style & the type should be much larger.
I think you should spring for a color cover, or at least if you only have one color it should be something other than black. For example, you could have a blue background with white type, no picture. Or graduated bands of blue, about 5 of them, across the cover with the title in one of them & your name in another. Actually blood red with white lettering would be good. If you must use black, how about solid black with white lettering?
I like the box with the blurb on the back but the line around it should be thinner.
Sorry I'm picky but I do this sort of thing for a living. If you want me to send you an example of my suggestions I'd be glad to.