Sorry it took me a while to get in here.
There is significant improvement between the first set of videos and the latest. Your composure is much better as is the ability to get positions that are advantageous. Your technique isnt bad at all, it's just that sometimes you box reactively, perhaps depending on the skill level of the opponent, meaning your top priority is always reacting to what may happen to you, as oppose to making things happen to the other guy. My Son does this as well and it makes it look like he makes poor decisions on his attacks that get him hit. It's more that he anticipates the response. This is why fighters tend to disengage as their primary defense. Stepping back until they cant be hit, which you do sometimes.
I recommend more partner drills at middle-distance and inside. Also some very light tire sparring where the focus is being comfortable being closer and using any defense other than manipulation of distance (stepping out to far, or on too deep).