The phrase "neat bow" means to neatly package or complete something in a tidy and organized manner, similar to tying a perfect bow on a gift. Full definition
The other was a total surprise, a set of makeup brushes rolled into a nice neat bow. (shoesandsashimi.com)
I wished that the protagonist was a bit more interesting, which could be a product of the source material, but this thing wraps up in a surprisingly neat bow. (rogerebert.com)