I love your creature designs. but they lack a bit of focus in terms of rendering. I am missing some bigger shapes to get more clarity here, I think you got a little lost in the details. It is just that like this I cannot really make out that much from my first look, I have to keep searching for the face. I think that you want that to be your focus (taking a guess here) but on the bottom left one all I see is the top of the head and the face gets kinda lost. with the creature on the right this works a bit better, but then the legs and torso have so much texture that my eyes are immediately directed to that. Maybe think more about the flow in your designs
Regarding the creature - did you think about where this guy lives? How does it procreate? What do they eat? Is it an intelligent creature or just a dumb wumbo? From what I*m getting is that they are meat eaters, kinda dumb (as they do not wear any clothes or patterns on the bodies that would indicate self-reflection). What confuses me a bit is that I associate them with living in water simehow because of the "crustatian" feel of their skin and shapes. But this does not make sense with their limbs. I can*t really make out where these guys live? to me definetely near the water, maybe not directly inside of it.
So yeah maybe this helps you think more about your designs in the future. As always your stuff is lovely, just because my critique i long does not mean I hate it. Your anatomy is really good with how you make the limbs connect. These guys look like they could exist, which is awesome.