First off, fantastic build. I'm really diggin the design with the use of lots of different materials. If you were to tell people you are using, wood, plastic and aluminum to build a custom case, I highly doubt one's mind would take them where you went. Very sleek and simple. I've used all these materials in the past, and I can see the huge amounts of skill you employed to get this build to look as it does. Lots of people who don't work with this sort of stuff can't even begin to realize how much actual WORK is involved in it. Props.
Now, I have a theory on why you are not satisfied with your finished product. My bet, subconsciously you are desiring to build yet another fantastic mod and if you convince yourself this is not up to snuff, it therefore gives you a completely legit reason to do so. I say, go for it.
Lastly, I read thru the build and saw some stuff that stood out in regard to your acrylic work. I am about to start a new project using acrylic and I am stealing some ideas. Sorry, have to.