Hey Emil,
I think it’s definitely a mix of these things that will create better serves but you can see yoh are getting more spin now which is really good. As you said just trying to get more acceleration through the contact.
Also another important part is to try not to scoop u der the ball too much, try to really focus on contacting the ball around the side which makes the spin much harder to read. When you do this you also get more spin as well.
Last thing is to just keep having a look at Pär doing the serves and do as much practice as you can, this will help you get the action and feeling of the serve confident. I think you’ve made a good start in a short time here though, so keep it up!
This angle is actually very good to see your serve action to be honest I think this one is the best possible. Looks like a cool set up you have there with the table as well!
Dan 🙂