Haha I’m in the black/red sleeved shirt.
Alrighty then.....
As Der said, I would focus on a few small improvements rather than getting bogged down by loads of things you can change.
The immediate biggest issue for me is how far in front of you, you take the ball.
You are losing so much spin potential by taking it where you do, but I think part of this also has to do with equipment........
I HATE recommending that people change equipment, because it's expensive, and isn't always necessary.
However, one of the reasons juniors learn with *really* slow rubbers (in the UK at least), is so they can get that feeling of hitting shots with a very fast arm, that is needed as you move up the ranks.
It almost looks like your set up is too quick, which is making you hit shots at 75% arm speed.
The downsides to this are:
1. You can never truly generate the spin you should be able to.
2. You miss a lot because it's harder to control the spin
3. When your shots do go on, they are slower than they should be.
If you had slower, tackier rubbers, you could increase your arm speed (which I believe you need to do), which would increase the ball speed, but hopefully also increase the control/spin as well.
If you don't want to change rubbers - Try increasing your arm speed in practice.
NOTE - That doesn't mean every ball should be a rocket, but there needs to be more "snap" in your arm which will generate more spin.
Another thing to think about is "anticipation".
I'm sure there are multiple examples, but have a look at the point at 6:08
You do a pendulum serve that you've done before.
He pushes to the same place he's pushed before.
But you are still watching it as it comes back over the net, having not moved from your ready position.
In an ideal world, you want to be serving, and then getting ready to come in with a big attack on ball 3.
Your opponents aren't giving you crazy good serve returns, so you'd have a great opportunity on most points.
It's hard to go from that position there, to an all out attacking position when the ball is already on your side of the table - Your anticipation and movement into position need to be much quicker.
Is there any part of your game you would like to really work on?