>>18770407As far as I know this is the only "official" reference for its design, and there aren't any detail shots of its face or anything, which would have really helped. So your guess on the shape is as good as mine, because this art is too sketchy to say one way or another.
A couple people made some sketches a few threads ago for what they think the shape might be like, and I tried to interpret those + this image to try to get it close to how it might look.