I agree with previous posters- it looks to me like all that's really missing is shelves, if they'd fit. Looks just like the interior of the cabinets in my Trillium
except that at least in my uppers there's the ensolite wall covering. (The undersink area doesn't even have that.)
I can't tell/don't know if any of the openings have molded edges as on my Trillim's main cabinets, but for those that don't, a more finished look can be achieved by adding some push-on molding to those cutout edges. Don't know if it would interfere with the doors closing, though...