The colours and markings remind me of Gunbuster and the overall shape and cape remind me of Dix-Neuf from Diebuster. There's also a bit of Giant Robo in there somewhere. Though you were probably thinking more along Ghibli lines.I still need to make you watch Gunbuster and Diebuster.
in my head I'm mostly ripping off Big O because I quite like that design. I'll look up gunbuster right now and see if i can find an episode.