Haha, Honestly I didn't even think to look at the pictures when I put them up, sorry for not clarifying it earlier, I just didnt know what concerns you had with it. No need to say sorry, I appreciate your help from 1 grower to the next. We are all here for the dank.
the end of your exhaust. how much air is coming out when it's on? how hot is the air? if your going up and the air is warm it should all most pull air out. also how many truns in your ducting? I have about a 15 foot run on mine and use a bath exhaust fan and push air. it is very warm and opens the vent door about half way.