Hi Schwuah,
He, he, you got yourself quite some Intellijel stuff in that rack ;-) If this is what you want :-)
Some little feedback: You got yourself quite a few interesting and fancy modules, though I feel you could have one more oscillator and one more LFO and perhaps you should consider an ADSR module too. Quad AD is nice but sometimes it's good to have a ful ADSR too.
Or, and that would be my next piece of advice, keep it as it is, still add a bit more of oscillators, LFOs and envelopes and put that in a 7U * 104 HP unit (instead of 84 HP). Gives you just that extra space. Because with the 84 HP planning, you have no space left at all for any (near) future extension and you will be forced to buy an additional case, so why not going directly for the 104 HP case?
Last one, do you really need two pieces of those 1U - Quad Annuators modules? Personally, I would be happy with one of them and have some space left for one or two other interesting 1U modules.
First I had to get used to your rack (because of all the Intellijel stuff) but I actually like it, just do yourself a favour and get the 104 HP case then you are ready for the future too!
Kind regards, Garfield Modular.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads