Ok so I see some problems.
The dual fans are just stuck to a piece of acrylic so those things have no air intake and will do exactly nothing but create a little heat from their motors so those can be removed as they are pointless.
The second issue I see is that you wanted to do a airflow through the bottom design and exit the top but then changed your mind somewhere along the way and made it side venting. This blocks a lot of airflow from the bottom and whilst it would give the cpu some fresh air it would cause air pressure issues for the gpu up top as there is now 1 intake fan and 2 fans taking air out + the psu.
The other issues I see is that the gpu has to pull air from some teeny tiny holes that are in the metal plate where it mounts. Make as many holes as possible in that metal plate. It would also be throwing some hot air onto the back of the psu and the back of the psu may be in the way of the gpu.
Now for a suggested fix. The bottom of the case put a big boi 200mm fan in there blowing up. Get the motherboard on some very very tall standoffs so the air from that fan can at least blow around a bit better when being obstructed. This should already help thermals a fair bit. Then to prevent the cpu from heating the case to a stupid degree use a 120mm aio (yes this is like one of the only times I'd recommend such a thing) and have it exhaust directly. The plate that separates the gpu and the other components make it filled with as many holes as possible.
Then to prevent any air pressure issues make some small slits between the acrylic and the metal it mounts to so that if there is air pressure issues it has some way to balance itself out. On top I would put a 140mm fan and have everything as it is now but instead of it blowing onto a solid piece of metal make that metal a fine mesh.
EDIT: I just noticed the dual 120 fans on the side have a dust cover. This changes a lot but still I would implement the changes I'd suggested. This does mean the noctua can totally stay BUT you really really really want to make sure that metal surface between the gpu and other components is almost nothing but holes as you are now running a massive positive pressure system. I'm not sure about the measurements up top of the case but you could maybe fit a 200mm fan in there (doesn't matter that it would be a little blocked off by the metal parts) for some nice looks.
