It looks promising. It may be a little early to make this suggestion, but is there any chance of getting just a hint of color in there? Objects that are pretty grey still have the tiniest shades of color -- often blue for metalic/polymer stuff like an aircraft. And having some color distinction can help it "pop" a little bit more.
As an example, check out the difference in a
grey and
colored stiletto. Both have the feel of strict military function, but the latter just feels a little bit more exciting (IMO).
You probably already planned to do this later, but thought I'd mention.