It is my first time building my own computer, and here is my build. What do you think?
There's definitely some room for improvement. A few suggestions:
Swap that mobo out for an ASUS Sabertooth. It has higher quality components and comes with thermal armour that can be removed and painted.
Not a huge deal, but the CAS on your RAM is a tad high. Generally you want a CAS of 9 or lower.
You could also get a better PSU for cheaper than the one you chose. EVGA's G2s are pretty damn good. They're fully modular and the 750W model is just over $100.
Hope this helps.
ESPM400 said most of it, I would also swap out that 212 plus for a 212 evo as its the newer model of it.