I think that's most likely where it fails, it is small detail and intended to be so.   However, this works better blown up from its original 1x1 state, (although working in finite has certain pitfalls that I haven't as yet ironed out).  You could say more space between lines would make it more eligable, but then it would lose the sense of a compounded tin can vibe I was trying for.  Ultimately the picture should be (in the sense of a scene) divided in thirds top to bottom.  I could've defined these sections much better, but aimed for fluidity between them. When creating this, it wasn't noticable how flow could be construed as something that hinders rather than becoming progressive, but on reflection your probably right.

It's hard to tell what's going on. There's so much detail, most of it very thin (created with 1px-thick lines), that there's no sense of volume to anything, no sense of how things interconnect and interact. That's fine if it's meant to be a bunch of decorative elements, but if this is intended as a scene, then it makes the scene very hard to read.