A few things...first up, this thing is NOT going to behave the way you think it will. You're missing far too many of the various utility-type "non-sexy" modules here. Sure, it'll make sounds and such...but so will a kazoo.
Second, this doesn't appear to be very specific, and I see a lot of "let's jam ALL the functions in this box" going on. Given that this is actually a rather smallish build, you don't have that luxury...unless you like the idea of conveniently-housed noisemakers. It's far more advisable to pick a functionality...and then stay in that lane. If this were something in a huge Doepfer Monster case, sure, yeah, go ahead and put the drums AND the bassline AND the lead AND the effects, etc etc, in one box. But this isn't that.
Third, you don't have the luxury in this space of adding "superfluous" modules. Lose the LINK, lose the Paratek meters, and lose anything else that doesn't fit into a tighter definition of what this build should be. For example, you've got 58 hp dedicated to drum modules; if you can fit that into HALF the amount of space, it would make more sense to retain the drums...but right now, given the relative absence of modulation sources, the lack of any VCF at all, and so on, the smart move here would be to scrap this build (not a bad thing...NO ONE gets an initial build right -- EVER) and step back for a few. What does your music NEED from a modular rig? Are there other solutions that make more technical AND MONETARY sense? How do I set up a very basic patch? ALL of these...and buttloads more...are questions you need to sort out before ever getting a build close to a physical purchase. If not, you stand to lose a pile of ca$h on a box that you'll discover pretty quickly is NOT ALL THAT.
Before picking this back up again, I'd also suggest you spend quite a bit of time with VCV Rack, which is a pretty accurate "virtual" Eurorack system implemented in hardware, and is a very good tool for sorting out what one needs when they get around to hardware. Plus, it's free...which is EXTREMELY useful if you get it to avoid making costly mistakes later on. https://vcvrack.com/