Man, getting glasses must be such a bitch for him.
I dunno if the music you linked is supposed to go with him. I'm assuming it does. Its cool but I think if you want something more technoy for someone who's as much of a badass as Endy is I think something with more "teeth" to it would work. So I suggest this. youtu.be/cVu7lLgoNsA
Endy is just such a giant character in your mythos. If I had to picture what kind of music would go for him I'd want either some big "epic" film score or video game music, or something really dark that would put the fear of god into whoever listens to it. This next track is definitely an acquired taste but it's just so ominous and dissonant it can't help but terrify anyone who's not ready for it. The tone of the guitar work here makes me think it fits Endeavor's personality or his presence even. youtu.be/fTYXbFsWg-M
Also, the music video for this track is pretty rad.