What it really comes down to is, its fine not to like them. We all have any number of dragons we don't care for, that's just how exiting as your own person works. Its not fine to essentially come into their home and tell them they wasted hours of work because you don't like it. And I'm so tired of seeing this happen every time there's a release, I ignore the release threads because of this. Yes the forums are for everyone, but release threads, that's where the artists are looking when their dragon drops.
Focus on what you like, not what you dislike. Maybe you hate all the sprites except one, just say 'x is my favorite of this set!' and leave it at that. Or even just focus on someone you know that loves them. Whenever we have a pygmy egg I get super excited, not because I will particularly enjoy them, but because I have a friend that loves the pygmys.
Because in the end, voicing you don't like it isn't going to change the sprites. They very rarely get updated, and that's only at the spriters request. There's nothing to be accomplished by pointing out any flaws or how much you don't like something besides making the artist feel bad. That's all that gets accomplished. Is it really that hard for people to go 'ehh not my style' internally and just go about their day. Besides using up eggslots because of a new release, how does it affect you? If you really don't want to waste eggslots on something you won't like, wait for the adults to bother grabbing any eggs. Complain in private if you must.
I love all the poses on these guys! Especially the baby wyvern and female pygmy!