Ah the perfect boy

Mushy and gushy, all human like, with normal human skin, and smile

Scratch that

Heavy body armor, brandishing a sword, born in the mid 15th century

Hmmm, no

Aluminim for hair, copper in his head, lack of understanding of any type of human emotions

That's not right, no

How about
Scales?
Not possible
Gills?
Smells fishy
A being of pure light energy?
Sigh, beyond my comprehension

I guess I'll just get
A pet rock