The wings? well if you want the full wings with all of the poses ( small medium and large) Alchemy is the way to go.
if you want the single size wings ( small, medium OR large) those can be gotten in certain rigs which also come in different colors, or you can buy them straight in the cash shop.
it depends on the scythes and wings were supposed to be the ultimate prize of the site, so i honestly believe those are to be worked towards.
As to solia... i've tried the site, i prefer the avatar system on gaia. I will likely get back to it to give it another chance though.