The loft is looking great, the floors look perfect for that "barn" and the trim fits right in. 
The gap in the cabinets, I'd take the doors off and fill it with some painters caulk and recoat it with the Krylon you were using. Since it was 24 hours old, it shouldn't have bubbled unless something got on the finish like oil.
If I would have been keeping up on your build I would have suggested that you use a french cleat to hang the cabinets but you (wife) came up with a solution. One thing I would suggest is to add a 1x6 (ripped to size) on top of the small braces(running parallel to the bench top) at the bottom. This will give added support at the base of the cabinets and a place to mount some type of under cabnet lighting if you choose to add some later on.
The gap in the cabinets, I'd take the doors off and fill it with some painters caulk and recoat it with the Krylon you were using. Since it was 24 hours old, it shouldn't have bubbled unless something got on the finish like oil.
If I would have been keeping up on your build I would have suggested that you use a french cleat to hang the cabinets but you (wife) came up with a solution. One thing I would suggest is to add a 1x6 (ripped to size) on top of the small braces(running parallel to the bench top) at the bottom. This will give added support at the base of the cabinets and a place to mount some type of under cabnet lighting if you choose to add some later on.

































