Those are things of beauty, Tom! You're going to be really happy with these trees in a few years from now. You may have already done this after you took the photos, but I'd really encourage mulch over that soil.
Plum with daffodils, mint and vetch:
Close up you can see the vetch:
It kind of looks messy in my orchard, but there are very few actual weeds. It's a bit unsightly since I won't mow it. I'll get some more recent photos soon.