Congrats on getting back in the ring. After a quick glance I would say good way to utilize your jab and movement. For the most part you avoided his shots.
I would suggest doubling up your jab more often, and throw the occasional 1 2, also even try lining him up.
Early on you tried to lead with the left hook and you caught a stiff jab. As a general rule, throw your hooks either after another punch/combo, or when you counter. If you lead with it it leaves you wide open.
Also I noticed he wasnt wearing shoes.. lol? It must be an MMA gym right?
Good stuff though, maybe post some videos in the future and we can watch your progress.
Cheers.
EDIT:
Almost forgot! Loved the jabs to the body, way to get low. Excellent!