Hi, so a couple things:
Normally if you'd go for an expensive liquid cooler you'd have an overclockable processor & z370 motherboard, in which case I'd say go for either an overclockable processor or get a cheaper aircooler like the cooler master hyper 212 evo.

Your case barely fits the GPU, is of poor build quality, the windows are small and not even all the fans are led (you don't need 6 in the first place tbh.), I'd recommend one of the following cases:
NZXT S340 (elite),
Corsair Carbide Spec-04,
Phanteks P400(S) (Tempered Glass),
Cooler Master Masterbox Lite 5 (RGB)
(All of these cases would fit your GPU)

Don't cheap out on your PSU in builds like these, the Cougar VTE 600 seems like a poor quality PSU and a poor quality PSU could blow up your entire system in the long run, I'd go for something like the Corsair CX550M or the EVGA 500B instead.

Also there's always the debate between Intel and AMD, I personally suggest Ryzen as it's better value per dollar and has only slightly less single core performance (around 5%) whilst providing more cores for the mainstream if you're a content creator.
I'd personally suggest going for a Ryzen 5 2600X for gaming or a Ryzen 7 2700X if you're also doing content creation and I'd go for something like the MSI B350 Tomahawk as your motherboard.