Those masteries are looking great, Im glad y'all took player feedback into account. From the video, my feedback would be:
The orange gem for M9 should probably be brighter to pop a little more.
The Gem for M7 does look a little off and might benefit from being either a touch bigger or a touch higher or both.
Mastery 9 and 10 could have one more set of 'wings', in the old system, m7 was extremely distinct because it had so much extra wing. Also I think the shield getting wider looked really good on the older ones, 9 and 10 here look visually a bit smaller.
I don't know if the sound is getting changed, but the metallic ring of the old system was extremely impactful compared to the glassy sounds they have. To be clear the glassy noises are not bad, but I think for M8-10, the sound could be a bit longer with the metallic ring sort of 'punching' through at the end.
I don't know what particles will be associated but those gems best be shining with their coloured ...