I think Juniper and Pip are really super cute! I especially like the one where she's sitting on the ground, looking a bit disillusioned. In terms of color I feel that Pip gets a bit lost in all of the images, I had to search for him an didn't see him right away, especially in the first picture where he sits on Junipers Hair, so I would probably make him either a bit lighter or darker so he reads better as a character.
same goes fo Fin, who is a bit too small for my taste to read as a character, even tho if you look closely I really think he is cute, but.. I honestly didn't see him at all until I sat down to write something about Jasper and was like, wait.. there are two names again.
on the other hand that butterfly is grabbing a bit too much attention, I think because its clearly by far the most saturated color of the picture, he stands out even more than Jasper, and it looks like he also has some pretty dark outlines, so that makes all other things on the page a bit pale.
And maybe a small note about lineart: in some parts especially the eyes it seems like the line is drawn very carefully and so lacks a bit of strength. I would try and dare to get a bit loose with that. I
t seems like to really want to make that line right, but at the cost of a beautiful line. (the hair or fishtail for example look so much more smooth and confident
These all are really just some small things!! I'm pretty sure you will make it soon! I find your characters both very cute and would like to hear more about them! and for example Jaspers Fishtail has a very beautiful shape design!! Also I feel your style is both unique and somehow fresh!
Hope this is somewhat of a helpful feedback for you!