After browsing through several of your maps, I've noticed that a lot of them blend together too well - i.e. the details are slightly harder to notice and objects blend together. Some of it has to do with low and subtle texturing, but it's difficult to add too much texture and still keep the same sleek futuristic vibe. The other thing is your general palette. You seem to be using a lot of gold and yellow tints. I'm not sure if you're going for a monochromatic look or just prefer those colors, but what you end up with is very little contrast. And contrast is really important.
I've done a really quick color and brightness adjustment of your last screenshot:
There's a few things that pop immediately.
First is that there's a ton
of texture in your metal that just does not come through in the original. That's a shame, as it really brings the metal to another level. The second is that using contrasting colors (copper orange/brown vs blue) draws the eye in a lot more - especially to the pathway and console in the center. It's not as crucial in this map because it's constructed in a way to bring attention to the center console, but it's something very important to note for larger maps.
Of course, the recolor might not work for your game at all, as it might give off more Steampunk vibe than futuristic. But do consider adding some extra contrast to your palette to increase the level of detail. Yellow's contrasting color is purple, so look at ways to tie purple in where you need the player to pay attention to the detail.