My Schrodinger costume is green, not tan(should it be tan or does it not matter?). You can see the shirt I made for the costume in my gallery. I didn't really follow any pattern, I pretty much made my own by tracing a T-shirt on to the fabric(minus the sleeves, those came later) then just transform it into a uniform shirt. Though I plan to re-make it cause the collar area is too loose so that on my cosplay to-do list now. As for the armband, I made it a smiley face to avoid any problems. X3 I suggest it to my friend and she was like 'Yea, you should totally do that!' so I did.
It's not in the picture in my gallery cause I added it on later.
All and all I love cosplaying as him, and I hope you do too. :3