Need help with crazy quilt block

I am taking Sharon B's Encrusted Crazy Quilting class at http://www.joggles.com/ I am trying to decide on the fabrics for my block for the class. I have assembled lots of possibilities. I know that there are more than I need and that some are wrong choices, but would like some help choosing. These are not colors I normally work with, which is kind of the point, but I got the patterned fabrics in a swap and thought they would make a cool block. Let me know what you think, the roses and the yellows are what i am not sure of. Thanks