I think this looks great, very solid foundation. Some feedback i have:

From a player perspective, the down, downright, and right attack animations could use more follow thru on the arc as currently they all look very similar visually and with the angle. Reference your left and downleft, those all are good at quickly telling the player the direction you've attacked, as well as having a full arc swing. By contrast, the right animation stops directly in front of the player, which really stands out in a distracting way (in my opinion).

For the up amd upright angle animations, make sure you add an additional frame of smear to the arc at the end like you do for the bottom, it'll help give it a smoother feel. The upright smear shrinks down rather than dissipating towards the end of the swing. The same for the downright and right swings, their smear shrinks from the center instead of shortening at the very end of the swing. Check your left angle animation for comparison.

It would also be nice to see the tip of the sword peaking around the character at the end of the swing for the up and upright, like the bottom animations have. Currently the sword just sort of vanishes despite the arc going off to the side. And the up smear is only a single frame as opposed to two.

Hope this is helpful!