Jovin,
Pumped you created that youtube account! Awesome.
Your cleans are solid, your hinge is good and you are getting nice quick elbows and catching in a solid power position / front rack.
If you want better transfer to ultimate you should work on your hip extension moment. We want to stretch out the portion where your hips are in extension and your shoulder is shrugged for as long as possible.
Reference this photo
https://www.instagram.com/p/BTq38XNAc0x/?taken-by=timmorrill
This is the moment of full hip extension, you want to over exaggerate this and try to “float” as long as possible in the air.
Let me know if this makes sense, try it out and submit another video on your new youtube channel!