Too dark, can’t see creepy.

At first, in that light, I couldn’t tell if their eyes had pupils, but I realized they did. IMO it would make the orange cat and blue bear scarier if instead of pinprick pupils they just had full-white eyes. Pretty scary as-is, though. 👍

Dial it in if you want creepy vs. scary. Make them mostly normal with an uncanny feature or two, and make those different for each one.

The post below about putting human eyes on one is a great example.

I like them. My favorites are the ones on the far left and far right. I think it would do some good to diversify the horror factor; instead of sharp teeth, maybe have a too-big set of human(ish) teeth. This example would be best on the far-right one, since its eyes are already pretty freaky. Making some of them more uncanny would go a long way for you. Looks good, though :-)