First time trying to post an image, so please forgive me if it takes a few attempts. I found this concept art for DS1 (Episode III) that I found interesting. I thought that visually it was different enough to separate itself from DS1 (as seen in Episode IV) while still eventually being in the same class of super weapon. Being in an early stage it also helps quell the argument that the Empire couldn’t have built it in the allotted time.
I’m not sure if there’s appetite to replace the iconic DS2 silhouette, but thought that it was at least worth considering.
I think it would be a bad idea to mess with the silhouette, but since we’ve never seen the reverse side of it, there’s a lot of room for creativity there, and that image you posted could still serve as inspiration for additional shots. The DS2 could still be mostly hollow for all we know - only the reactor and the path to it are known to be closed in.