First of all it is beautiful. Is there a picture on the plate that can be displayed? Might add to the perceived value, otherwise putting product in front of plate is fine. My other thought is, do the products need to be all local or is it more important to stick to the theme? I agree with the thoughts on shred. i use shred to tuck in between items to stablize as a finishing touch.
I have some clients who want local products and I try to get those products wholesale from the suppliers. When I use cheese I include crackers or chips that go with cheese. I try to use a variety of sweet and savory and a drink, like you have done.