@_abelvin you are doing a good job. You keep taking the picture from the same side. Walk around it and take a few. I still do not know how big it is because we can only see the entrance.
Wow...that thing looks like it stands 6 or 7 feet high...and sticks out as the only thing green in the pic. But it does look like good construction ...now if we can work on holding the camera/phone level... lol
No problem....just going by what was visible in the pic. For colder weather, a smaller interior will help you maintain heat, especially when it gets down to -20 or so
What I would do is let nature provide your camouflage, living camouflage. After you are certain your roof is strong enough; cover it with a tarpaulin then a few inches of dirt. Gather up whatever is shallow rooted in the woods and plant it, let nature do her thing. In time, it will be hidden, look natural and even better be dry. A small heater will keep it warmer that only brush. .