I like the bottom half, but maybe lose the stalks of wheat at the top and convert the golden star motif to represent the wheat instead? I think it would make it less fussy at the top, and with large wheat kernels to replace the star points, it might emhasize the wheatiness some how. If you are determined to have the wheat stalks, then maybe put the main motif dead centre and have it circled with a wheat wreath? Wreaths ALWAYS look classy!
I like it, otherwise I would not have bothered to comment.