So a few months ago, I built this pc. Was almost the same , expect I had 3 1080p monitors with really cheap speakers and a cheap headset, and no sound card.
Once my wallet recovered. I sold my 3 1080p monitors. I purchased my self a 4k monitor, and better audio.
The two key parts of this build (imo), are the monitor and the gpu. Both are AMAZING. This card preforms great, without ever topping 70c. The monitor is HUGE. Great colors, great stand, decent audio output. Just beautiful.
As you can see, I went with a red/black layout. Red and Black is pretty overused, but idc. I went with it because I think it looks amazing. Everything just fit so perfectly. Red/Black GPU/Motherboard/Soundcard. I really lucked out with the colors.