very nice sig. but i think it needs a little depth. the yellow seems to be more focused than the monster. i would erase a little off of it. text is good.
Needs more appeal, those fleshy colours aren't that nice to look at to be honest, and the C4D effect looks slapped on, try and create some depth, and make it darker. I think some gritty textures would look nice with this seeing as it is a monster xD
The light source above the monster head needs to be removed along with the yellow splatter brushes. Try creating more depth to draw attention towards the focal. Also remove the text.
The sig overall is okay but nothing really stands out if you know what I mean.