User blog comment:ChishioKunrin/Volume 3 Episode 3 Sneak Peek/@comment-209.195.85.53-20151109001229/@comment-4010415-20151111181738

His eyes look more like a dull reddish-brown at 0:15, not gray or silver. Lately, RWBY has had a thing where the color of the lighting can affect some of the colors, so considering that part takes place in Ozpin's office with the glowing blue holograms. Blue and green have an effect on red that makes it look a little more brown or gray and turns it into a dull color.

His eyes are red, but blue, green, and blue-green lighting makes them look really dull and more of a dull reddish-brown. There was a bit of blue-green lighting in the Crow Bar.

I've actually seen it suggested that the pictures in that bar are actually supposed to be holograms, and some of them could be a bit more 3D hologram instead of 2D, which would explain why that one picture has parts of it on top of the cash register.