Ditto for what Latin Lens mentioned.
Just a few more things I noticed.
Right off the bat, a personal pet peeve of mine: use of the stick mic. Lose it. I saw you had him laved up while you were getting b-roll. I don't know why you didn't put it on for the interview also. If you have absolutely no other option, then make sure the stick stays outta the shot. Shoot tight. No one hates on a stick mic more than I do. I could write a whole chapter on why I feel this way, but I'll spare ya.
I'll reiterate the advice of becoming very close friends with your 'pod. If you throw the cam on your shoulder, keep it wide and move in close to the action.
Always be aware of the lighting conditions of your surroundings. In the interview at 1:56, there was an EPIC shadow across the guy's face. I know it gets sketchy during noon daylight, but it seems like you could've turned him about 45 degrees to the left and the sun would've cast the light to give a partial key light effect.
As for staying within the axis, another way to easily avoid crossing over is shooting tight. LL already stressed the importance of shooting tight shots. This is just another reason to do it. The tighter the shot, the better chance of avoiding a breach in the axis.
Be mindful of your framing. Specifically the (lack of) headroom in the interview at 1:56, the very top of the guy's head was chopped off.
Stay open-minded, and you'll see your work improve with time.