I honestly wasn't too sure about this one at first, because the art is very different to what we usually see on steelbooks... however, I think the fact that it's so unique is what I've grown to love about it. Every time I look at the artwork I see something new that I didn't spot before, which is very cool!
Yes, matte unfortunately . . . not great quality matte either with streaks visible up close . . . still the best GLASS artwork around tho...
Few other pics (of director signed copy):- credit edit by wreck
... artwork looks good from a distance in butterfly mode:-