I'm going to let it sit for a day or two and come back to it. I'm not thrilled with the internal petals and I think I can improve them, but I'm going to give it a little space first.
UPDATE: I decided I'm done. I've uploaded the image of it to Zazzle and made a blank greeting card with it, should anyone decide they'd like to purchase one. If flowers ain't yer bag, don't worry... they're not really mine, either. I'll soon upload some others.