Exchange the PSU for just about anything else. The cables are .. extremely disgusting, as in: THIS is where FSP cheaped out. AF!
And yeah, the goat recommends are: Corsair SF750 / 850 / 1000, Silverstone EX850R, Asus ROG Loki 750 / 850 / 1000, etc.
I'd probably replace the mainboard as well, just because of its proprietary wifi connectors, and some ill-advised ideas on where to position sockets on the PCB. Been pondering it for my own build for a while, because the only white-ish board, but the disadvantages dont seem to be worth the "lets have it whiteish".
If its about USB4, the Asus X670 is the better choice. And at worst, you know, painting aluminium is another question I had before (ie. my solution: use acrylic paint) 
Rest: Looks good to me. Maybe replace the CPU cooler with one by Thermalright, but I guess at that massive amount of air cooling space, its rather neglectable which brand you pick.
cu, w0lf