Id say nice set up but change the lights, never seen anyone happy about the preformance of blurple lights... the co2 bags shouldnt be on your exhaust filter either, OP is right bring them down atleast to canopy height so your leaves will be able to use some of it before your exhaust steals the rest... and if you dont run a Co2 burner as back up those bags wont be enough for that space come flower. You want 4 of them to make a difference in that space, the manufacturer of those bags is reaching to say one of those bags for a 5x5 space, its not enough. 2 per 5x5 and calculate from there, they do work but a burner is reliable and consistant in Co2 output where you will find the bags to vary a lot as Co2 is consumed by your plants. In a couple months Co2 production from the bags will deplete as that fungus fully grows into the substrate, did you inoculate your bags or just hang em? Gotta get the mycellenium into the substrate or it wont produce Co2 just so you know. Good set up though, hope you have better luck with the blurples then most people have.