alrighty... if we're getting serious then... whenever i see something like this i always tell people to try to 'think outside the box'. Tent grows and closet grows and micro grows and such can really be a lot of trouble and require you to have all the nuances (such as air flow) in check.
if we were talking the partition of space.... you ideally want about 1/3 veg height and 2/3 flower height in a given area.
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seriously OP, what is it you want us to check out? You going to include some more diagrams of your setup? intake, exhaust, lights, wiring, fans, yada yada yada. We need to see more before we give opinions.
as it is, that looks pretty small, can you double the width?
The blue thing is like a dryer vent , then connect it to pvc pipe and down around back, so it blow all air in to small chamber in back and leeks out from underneath. Under the blue "fan port" is a carbon fan sucking/filtering all air in front compartment where the plant would be. then add lights and SCROG and its finished