unamochilla2 said:

I don't see any issue with the dome - it's the angle of the photo. There are subtle differences, but it looks like R2 to me. There may be differences between ESB and ROTJ R2 that have gone unnoticed. I'm a little surprised he wasn't altered in some significant way after 30 years. Let's hope he doesn't fly. ;-)

If the photo shows the dome tilted back, it would appear to be shorter due to foreshortening. But to be fair, I was comparing JJ's R2 to the original R2 - as the ESB pictures show, the dome was changed for the later films. I just haven't seen ESB or ROTJ in so long that any change from the original model it immediately noticeable.