Change the grille inserts to the ones that come on the Overland, and get everything painted/wrapped in gloss black vinyl. Plasti-Dip looks cheap (at least the black, some of the metallic colors aren't as bad), in my opinion, but it is your Jeep so do what you want. Also, I would finish out blacking out the vehicle (mirrors and lettering on the side) if you are going to go that route.
Overall, it looks pretty good. Nice job!