Couple new screenshots, plus a little thingy I whipped up. (partial credit to the Retro Avatar maker by that one person I forget about. It won't be in the final game, it's just a showpiece.)
I like the addition of the telephone poles! Only thing is their silhouette kind of jumbles up depth or how they appear grounded in the scene for me. The one that stands out most is in front of the moon, I think because the actual level tiles are a lot lighter than it.
I just did a quick gradient thing overlayed on only the level tiles, the effect is best when you can see the low contrast details without bright stuff (forum background) wiping it out, like if viewing image against black background or fullscreen.
Not saying you should do this, just was curious how it would look.
I feel like maybe the sky would change a little too since now the top part of the level gets lost a bit. In my head I imagine the detailing on the tiles as glinting in the moonlight, with a panning diagonal highlight that slowly sweeps across the screen- Basically exactly like what you're doing on the border/frame.
*edit* also the missiles would look a bit out of place too.. hm.
I just saw your comment about a name.. maybe something with 'Drift' in it, or a similar word. Drifting...something city. You've got dudes fishin, floating dolphins, disembodied moon-heads, faces in buildings, floating structures, hanging corpses, it's like this world has been paused or set in very slow motion, and everything is just hanging there, even the telephone poles