What I like about this design is the balance between slickness and clunkiness. Bann has retained the classic Iron Man color scheme, but adds his own steampunky kind of flavor. The neck guards look cool, and the lights on the arms make sense for someone who wants to avoid mid-air collisions!
I like how he’s kept the classic circle element on the hips, and the IM logo (a first for Iron Man?) on the chest is very stylish and has a corporate feel, which I think suits Tony Stark. The coolest thing about this design, in my opinion, is that with the light-up elements, it would be spookily recognizable even in total darkness.