How does this look? what can i improve on?

[teddythedev (Dafunnited)]

I made this factory by hand for a fictional company from one of my writing essays. what could i do to make it better.

[Hyruledude992]

I would make the roof a bit wider and the chimneys grey and out of metal with some railing on top of them.

[o4ev]

I’d add a gradient to the smoke and add an outline to the neon part using parts