I like tempest, however sonic and silver need a bit of some work on their spines. For example, sonic's are far too outward, and silvers front spines/quills/spikes thingies are too small and thin. Also, I noticed that the sonic sprite facing us, has green pixels around the bottom of his shoe, I'm guessing that's a light dash level up, but on the first sprite you showed us, he has no levelup. But as for Tempest, me gusta.
the front-facing sonic is a completely different sprite, that's why it's labelled "Other sonic". Lol, sorry if it's misleading.
Also, thanks for the advice. I know so many people who love Tempest, but most of the top wad authors (Speedwagon, Wolfy, HellHawk, etc...) say that tempest is an awful recolor combination of Inazuma and Nitemare, I have no idea why though, as the only resemblance is the spines being long and all over the place.
Also, Speedwagon has told me not to work on tempest yet, until I've made sprites of an official character, but since everyone likes Tempest's sprites so far, and I have a better idea of what he looks like, I will do tempest as my main project.
EDIT:
Is it just me, or does Silver's head look too big anyway?
I will also take all advice, whether I like it or not. Lol, I'm not making the mistake someone here has already made their self recently. Not giving the name, but everyone probably already knows who I mean.
Also, how's this front-facing sprite for Tempest?
In comparison to the old one, which looked nothing like the back sprite:
I need to darken the shades a tiny bit, and make the outline sharper, but other than that, I'm quite chuffed. Lol.
Also, would any of these look better using "Flat colors"?