I like the style of colour fillings - using strips of the same colour gives it handdrawn like feeling. I enjoy the main robot - wires mixed with bigger elements like plates and masks.
I have mixed feeling about text bubble itself. Wondering if it isnt too bright, perhpaps a drarker more blood like color would be better. Moustache are uncessary or too small (go big or remove). The bending seems strange (last mask with red on the right). It supposed to be further from viewer yet it doesnt feel further - could use some shade to mark the distance.