For me the Japanese robots I grew up (not counting American ones that were adapted into anime's like Transformers and the like) with was Johnny Sokko and his Flying Robot (Giant Robo), Gigantor (Tetsujin 28), The Big O and Voltron
The great thing about your artwork is that it perfectly meshes the outlandishness of those classic tokusatsu shows and movies and adds a very whimsical, light hearted quality to it that feels like seeing these things through the eyes of a child (if that makes any sense whatsoever). This is great stuff. If you're not doing this professionally, you darn well ought to be.
This was the first Ultra episode I ever saw as a kid. I remember waking up super early in the morning and catching his first episode on TNT. I remember just being floored and in total awe when I saw this monster. Still do to this day. I love the presense you give him and the little added joke with the human yelling out "king what!?"
I always just assumed the visor was the eye. But considering it is a conglomeration of different ships, I don't think it has anything as anthropomorphized as that sort of feature. Still....makes me wonder what a battle between Voltron and King Joe would be like if the lions fought the Joe ships one on one