I especially like the pose of the middle one, it is well emphasised by its overly long tail. For all of them, the simple and straight design and the fading shapes connect perfectly to the inner scape of thought. Well chosen background as well, though I could imagine a colour blend to a colour more representing fear or sorrow, but I don't see the "story" your picture is telling at that point, so - well chosen background.

For the rest of it, luckily most, not all but most, kitten problems can be solved with a good treat and lots of love.