Another handstand video for critique, please

Hello everyone, hope everything be great in your life =)

I have been working on my handstand alignment, ( i really can only work on it 3-4 times in the week)

And i'd like to know if it's a good form to beginning another way of workout for them, i usually do 10-12 sets of 20 secs with the most strict form that i can perform

here's the video, thanks in advice!

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to fix the back arch, try to tuck your tailbone in between your legs. Its hard to describe, but focus on that and tightening your glutes.