I love this case, very well done, especially for your first time. One question I have in general, not necessarily for you, is why do I never see any1 who does a wooden case build, also do a PSU case in wood? Grounding is a non-issue, that's all part of the modding process, creativity, but I myself would do it if I were to build a wooden pc case, but I don't want to. It would be nice to see that addition though for once. Maybe you can do one in the future, like as an additional mod idea for later? That would be awesome. I'd also like to see some1 replace the ODD shell with wood. Hell, while you're at it, maybe go so far as to make wood fans as well, or at least the frames. just suggestions.
Building a shroud for a PSU wouldn't be that difficult, but it'd just make for heat issues since the metal casing itself acts as somewhat of a heat sink and by encasing it in wood (which really doesn't conduct heat all through it's core that well in this case because it's so thick) you'd be "baking" the PSU inside the shroud.
Shrouding a ODD in wood would be less of a problem though.
As for building wooden fans, it's possible but the engineering is too complicated for the average wood worker, and shaping the blades to make them all perfectly the same (to reduce vibration and maximize airflow) just isn't practical at all. A wooden frame for the fan just doesn't seem practical either because of the way that the fans work.