I bought a case with enough GPU clearance, without realising the radiator for a liquid cooling kit I got was much thicker than standard (Arctic Freezer II), so I had to get a new case for that.
It's good practise to measure everything with measuring tape, I reckon.
My first case didn't even give that option lol. Was a rather odd design. I'm using a Corsair case now and decided to front mount, with fans at the top for exhaust. My room gets a bit hot, probably from all the weed, so when I'm gaming it helps exhaust the air from the GPU.
I made my graphics card watercooled because I couldn't fit it in my case with the bigass extra long heatsink. It's complicated. I used a universal gpu water block, some small heatsinks for the mosfets and vram and thermal glue to hold the heatsinks on but I fucked up because that fucking glue is like 75% as strong as epoxy. Now that I have an actual proper gpu waterblock, I can't install it because of this shit. I guess the takeaway from this is to not do dumb stuff like I did, so at least you didn't do that.
Nah there's plenty of room, I have a feeling the CPU cooler fans are pointing the wrong way though. Like you can just see the back 'brace' part of the left fan.
Edit: Oh that top case fan is exhausting air before it's really done anything too. OP the air comes out where the brace bits are, try and keep the air moving in one direction, e.g. intakes near the front, exhaust near the back.