I noticed you have your flue exiting the stove at the back of the stove, partway up, through a pipe bend - if you ask me this is probably not what you want. My suspicion is you want that flue to come out right at the top of the stove, otherwise, with hot air rising, you will have a pile of smoky hot air sitting *above* the flue exit, and ready to leak out your door.

My little mini-stove has the exit at the top - and I don't get smoke leakage out the door.