As others have mentioned, let your feet take you to striking range. Don't over-reach or lean.
Don't leave your arm extended at the end of a punch for no good reason. That opens you up to all kinds of nasty counters.
Don't look down at the floor. That makes you vulnerable to a lot of things and also takes away your ability to launch any sort of solid WC based attack.
Several times as you punched with your left hand, you pulled your right arm way back behind you. Not a good idea in Wing Chun. (There are some systems which make use of that kind of motion, but even for those you have to be careful about when and how you apply it.)
You keep retreating and making space unnecessarily. Wing Chun is a close range system based on forward pressure. A couple of times you manage to cut angles when your opponent attacks instead of running away. Do more of that.
On your front kicks, you are raising up and leaning back slightly, which telegraphs your kicks, hurts your stability, and makes it harder to follow up with punches quickly. There is a time and place for leaning back in some systems, but it doesn't work so well with the WC paradigm.
On your round kicks you are dropping your arm as you kick. We do that deliberately in Muay Thai, but it ties in to the rest of the body dynamics of MT. Without those body dynamics it opens you up to counters. Is that something your instructor teaches you in your lineage?
It looks like you are throwing hammer fists as much as or more than actual straight punches. There's a time and place for hammer fists, but you have to pick your moments
I don't know what version of the WC stance your lineage teaches, but if you can establish that stance and work to keep it consistently while you are sparring it will make it easier to make all the rest of your WC work effectively.
Hope that is helpful. Good to see WC people sparring. Next step is to clean it up to be more WC.