What steve is suggesting is what i would do, download MSI afterburner or Gigabyte alike, to allow the GPU fans a more relaxed climbing of the fans, allowing 70C+ (probably aim at 80C at max), this you will achieve it by testing different settings with the graph. This should lower your noise levels when you game, at the expense of higher temps.
The CPU temps are also fairly good and you are allowing the fan to reach 1400rpms, you should relax the graph more on the bios, aim at 1000rpms or less (on load) would be my suggestions and see how the temps are in gaming. Else you can try re doing the paste, although the temps seems fine, i dont think this would help much. Another thing is get a cooler that can handle you overclocking better, probably something like Thermalright Macho RevB
, the fan plays nice with MSI G45/65 bios, start the CPU_FAN bios graph at 37.5% with a temp of 50C and the second try 75% or 87.5% and 75C/80C/85C, and go play see how are your temps.
Also check if you do benefit from overclocking the 4770K, its already a 4ghz stock, should be fine in most games, OCing will increase the temps, and thus the need for higher rpms. Another thing you could do on the CPU is deleding it, personally i fear the process, but i seen first hand a friend that dropped 10C doing it, still for me its not worth the risk, but each to its own.
Gigabyte Gaming 1070 +50Hz Core (Gigabyte 1080 Ti G1 Gaming pre-ordered, arriving April sometime)
Im going to suggest against if you want quieter setup, the GTX1080Ti is going to run hotter than a GTX1080 and GTX1070, thus you are going to need better cooling or higher rpms, personally im stil debating if the GTX1080Ti is worth it or not, usually first gens are cooler and not really stress as the Ti are, but up to you, if you feel you going to gain a better experniece gaming and willing to take the risk of higher noise levels, go for it.