The Era of the Innovators Book Cover Idea

This is a book cover idea that I'm working on for a friend of mine for his debut novel called "The Era of the Innovators." It's a fantasy novel taking place in a post disaster society just after their "Bronze age" where invention and innovation is what drives society. The book includes elements of magic and steampunk, and revolve around these gems that are imbued with magically properties. The main antagonist is someone that is trying to create a utopian society which is why I went the constructivist route rather than sticking with your typical steampunk style. I wanted to create something that was eyecatching, simple and didnt bank on other styles of the genre that have been developed, further setting it apart.

This my initial concept involving elements like the gem and schematics in the background further linking literary themes.

I am open to thoughts and would love some feedback. Thanks!