So real life has kept me being that active here on LAF of lately and besides forum activity, also this build project had stalled badly.
Got free time today and decided to give it a go still, the dead-line is looming in the horizon, I know

First the roof, used some left-over business cards from my castle job to make shingles or such. Didn't cover the whole roof though, just the parts that would not have snow on:
OOPS, will add proper pic later here
Then made an easy job chimney, cut some cork for tiles, glued on top of styrofoam form and used spackle to few spaces between the tiles to give it a mortar type of finish of sorts:

Glued the chimney in place and made the "top" part out of styrofoam:

When there's smoke, there's fire, they say… :

And now everything base coat, waiting for this to dry and then will start applying next paint coats:

Will need to rework the base part, it will not have frozen lake as I have no time for it :/ So it will be just snow for now, I'm afraid.