This is fantastic - thanks for sharing the image! I haven't seen anything quite like it out there...
The blue ~monochrome coloring lends emotional content - for me, a kind of serenity - to the scene, and I really like how the lighting brings out the detail without hotspots or distracting reflections. Everything works, and I can stare at it for long periods of time, moving from detail to detail. This is a place I would like to spend time in. I also really like the square elements - they provide a certain feeling of stability and evoke a sense of something electronic without being too specific.
Obviously, the narrow field of focus gives the feeling of a small space rather than an expansive one - this is different from many other fractal-based images that have everything in sharp focus and thus feel like city-sized views. Yet I am finding the field is not too small either - a decent fraction of the image is in focus. It helps guide the eye without limiting what I see - I don't feel like I wish anything else was in focus. It feels natural.
Have you considered rotating the image 180 degrees? It's different when viewed that way - I find that viewing the image upside-down, which puts the brighter side into the upper half of the image, gives a much lighter feeling, and it's somehow easier to appreciate the detail in the darker part of the image. It's obviously a psychological trick...the image hasn't actually changed.