TheSteamPunk:First of all, I love the concept you have with the first prevo (coughkadewcough), but the main brown colour is sickly and should be changed, preferably to a bronze colour to use the bronze->silver->gold. Your second prevo looks a little awkward, and it seems like you've just added Aurumoth's wings onto your first prevos body, bar a few minor edits. Sadly, this is an art contest, and so your prevos need much more detail. Your lineart is thick and edgy, and more definite shading is needed. Also, rather than making new posts, I'd edit in some of your older posts, as Jas said, especially if nobody has posted since you last posted. You've already posted a ton of times on this thread, which is unnecessary.
Eol: I'm lovin' the concept at the moment with your first prevo. It's very unique and looks lovely. Your sketch-esque art is also beautiful. Regarding your first prevo's colour scheme, I dislike both options. I'd look at Aurumoth's colour scheme and then take ideas from there. The blue option makes your prevo look like a ghost or dark type, whilst your white option is too bright and doesn't make sense for an Aurumoth prevo, especially those red bands. I also love the current look of your second prevo. I too suggest that the enveloping the gem + wings is the better choice, although all look great.
Juicy Fruit: I think you should stick with cute haha. Aurumoth doesn't really fit the "evil" bug look which your prevo shows, which also makes your prevo look ghost or dark type. I also dislike those legs; I don't know what they're trying to represent. I'd choose a lighter colour scheme, and a major rework of your submission, since I don't really like it at all. Sorry if I appear too harsh.
Quanyails: It's looking fine at the moment, but some work needs to be done in terms of art and perspective. The furry hest doesn't look furry, and so some extra detail would be nice to show its floofiness. I also don't get the perspective of its head. If you haven't realise, when your prevo is on the floor without propping the top half of its body up, it seems like the eyes and face would be looking downwards. I can't really imagine the prevo moving its head at all. due to the fact that you've given no room between the head and floofiness for a neck of some sort; it seems a bit stiff in that sense. Regarding your second prevo, it seems a little too... evolved? Like you'd expect a final evolution to be. It's also quite plain, and so I'd add some patterns on the shields. :P
Kadew: I absolutely love it. Your first prevo maintains cuteness (and floofiness) which works well and loks great (I'd keep the coloured tip). I also love the look of the second prevo, although I'd try adding Aurumoth's "stinger" onto the bottom of the cocoon, and seeing what that does. It might not work, but I'd give it a go. I also love the progression you've given your prevos, colour is utilised well, and whilst hardly original, the bronze->silver->gold colour scheme is great. Yu're definitely a frontrunner!
Koa: Ah Koa, I'm not really a fan of yours. The first prevo just doesn't make any sense. I have no clue what those little "fang" things are on the face, or why there are extentions of the fur, which look like it could possibly be an extra set of hands/arms. I don't like the pink body, or the human-like eyes. I also don't understand why the "antlers" are shaped like that. Your second prevo, by comparison is much better. I'm still not a fan of the antlers though, and I do agree that it looks a little too evil for an Aurumoth prevo. I also don't understand why you've added cyan/light blue parts all over your prevos, when there's none featured on Aurumoth. The stingers progress from light blue, to light blue, to yellow, which doesn't make any sense.
CBMeadow: It's a real shame about the abilities, since I adore your prevos and the fact that you've strayed away from the generic moth evolution process which we see so frequently in pokemon. I don't have much to say... I absolutely love it, but the abilities are very restrictive. I liked the agile look of your sketched second prevo, whilst your coloured version seems a little more bulky.