Dude this is looking seller. Now, don't get me wrong, I love a strong clean front aesthetic, but some kind of accent (if cost prohibitive) may go a long way. Maybe minor venting, maybe power button, maybe nothing and it's fine as is. Just a thought.
But that is looking hella clean!!
Do you have concern for color matching? If you plan to anno the side and powder coat the main chassis then this could cause problems. Wow. That size did come up quick. 13.6L. still pretty compact. Maybe go with bumpon feet. 10mm tall bump on? Just an idea.
(Similar to what the sg13 has)