Excellent work Callen.
I really like the way you have routered a 45 degree edges around the parts that wrap around the mobo.
Your right it does make it look smoother and blends in much nicer, excellent touch mate, looking forward to seeing more.

Please remember.
"Snug" is good, it's a very good word and you can never have to much "Snug" or say it to much,(well ok, maybe outside of a fabricating workshop that would be a bit strange to keep saying, so are you feeling snug today)

On the other hand.
Gap, Oh crap and Damm it! are not good, no matter where you are.