I actually built this guy before my Ehlek MOC, and this guy's main purpose was for me to fiddle with the torso, see what I could do with it before using it in Ehlek. Mirage was never meant to be more than a test dummy with a minor role in my story. So while I appreciate the feedback, I probably won't be upgrading or changing anything in this MOC ever. I just don't care enough and want to save my parts for more important stuff. I'll keep in mind what you said for future MOCs though.
This moc could use some work. The head/body is perfectly fine, so good work on that ! :) Now the problem is there are too many colors in the arms/legs. Maybe you should have incorporated the trans-yellow, Dark Blue, and gold (or similar colors) in the body OR removed them. The weapons also look like they wouldn't work with this guy, due to the colors. The upper leg design could use some work, and I'm not gonna lie one of my old mocs had the same design. It's hard to work with and cover up more, so maybe you should change it. Not hating, just giving some advice on how to make this much better. You don't have to take my advice.