Just to have a little update:
Been going back and forth on this, that is why there is so little progress. The original was "very detailled" in that small resolution but when you look at it under close inspection, most of it is A) just textures and B) blatantly reused.
Apart from that you cant really see what is what so I just model something in place. Note that the door at the end has 10x more polygons than the whole scene so far. It will be summer until this is finished if I continue at that quality.
Hope you like it.