Some of them seem pretty bad. I feel like the example image with the eyes and the teeth is quite a damning stylistic choice, compared to some of their other monsters which look more like a palette swap and animal change with some model variations. Save for the few that straight up have the same attack, like the Deciduueye example, I think it's reasonable enough to use them for inspiration, although not necessarily the best option. It's a shame they felt the need to rely on something that is popular I think it hurt them a bit by not having as uniform a vision.
That said, even if I do think it's pretty obvious I don't want them to lose this if anything comes of it, Pokemon is just as bad and they have nothing to gain from ruining this persons work other than asserting dominance.
I do hope they use this as a learning opportunity for next time and maybe stop being so goddamn blatant in their "homage". I would have been much more inclined to the game if it felt like the monsters had some rationale behind them because the game is pretty solid overall. All I can say is that I hope the game continues to exist but maybe gets a more original in-world bestiary and not Pokemon Gen 15
Gordon_Freeman