Though I don't think they're quite as great, overall, as the Winter sets, they look pretty nice. Let's see:

Mata Nui: It's a shame that there's no gold, but I'm still liking the look of him. Can anyone tell what color his eyes are?

Ackar: Still not a huge fan of him, but his color scheme is very welcome. I've yet to decide whether I like his Berix-helmet, and I wish the sword-thing wasn't silver. Good flame-piece, though.

Kiina: I like the prominence of the light blue and the new armor's pretty cool (Looks like it would do well on Gorast). The mask looks like a cross between Tuma and Vezon, but I'm not sure yet whether I like it or not. The new joints are awesome, of course, but I wish they didn't have grey Hordika necks showing like that.

Vastus: Vastus is very odd and I'm not sure about anything at all regarding him. His mask an interesting design and he has an interesting vine-snake aesthetic. Very exotic-looking. And that's all I know so far.

Gelu: Meh, mostly. He has silver where white would look better, but is that a dark blue head? 'Cause that'd be cool. I like his Hermes-wings, too.

Stronius: Best head out of all these. Very, very cool. My main worry about him was that he wouldn't look very Skrall-like, but he does. A very beefed up Skrall, but a Skrall. Of course, you guys know about my thoughts on clubs, so you know how I feel about them here. (Awesome.) Very rocky texture all over him, and a new torso as well.