I like the effect but it looks rushed, There are floating artifacts left from the building and also towards the centre of the image there is a blurred section on guard rail (soft masked?) and a little white clipping on the furthest part.

I like this effect of abandoned planet which is visited by ET's, like in a fiction movie...well, perhaps in some time will not a fiction. GL

Love the time-warp effect. Cool world you've created here. Love the great contrast.

Would be better if the shadows matched the light source.

Good idea...find yourself a usable background & resubmit!

nice