Welcome to the ROG forums, Rinehart.
Your setup looks top notch. Everything was picked out perfectly.
😉 As for general tips for a first time builder, I have a few.
1. Inspect your motherbord for any bent or missing pins.
2. Make sure to test everything before putting it into the case.
3. Do not overtighten the screws for the H90.
4. When you're screwing them in, do it in a criss cross pattern.
5. Make sure you seat the RAM properly. You will hear a faint click when they're properly inserted.
6. In regards to the RIVE, make sure all the switches for the PCIe lanes are on and the slow mode swtich is off.
7. Last but not least, do no update the BIOS unless facing any problems.
Have fun building.
😉