This is certainly interesting. :P
Your choice of body part selection for the alien bears a resemblance of the creatures from the game Spore (the eyeless mouths and suction cup feet).
By any chance did you use an in game screenshot for a reference photo?
Regardless this art piece has some pretty good shading and an eerie lighting to it.
I'm not exactly where the light source is emerging from, but one suggestion I might offer is to have the light that is extending across the grassy field to fade out a little bit closer if the light is coming from something electronic. If the light source is coming from something bigger, then I think the lighting is fitting.
Good work!