I like how it fits with the frame angles, and how the brace really shows up and doesn't just blend in to the fender braces. If it was me, I'd probably leave it. Plus, it looks like it could support a load, and this is a cargo bike right?
I could see a wood crate of some old oil cans strapped to the back....
Don't know if you have grips planned, but Ian at @ifitsfreeitsforme has awesome Thompson coke bottle or ball end grips that feel good and look great.
Actually the bracket I'm talking about is for the front basket. Hoping to have it redone, painted and mounted by weeks end.
I haven't decided on grips or pedals yet. Haven't found anything that's really struck me either.