Walking up the stair north-west of the second picture (depot) will bring you on the wall. Those fire cabins are moveable.
There's a bush standing in the way of the entrance of the third picture (shop), again the fire cabins are moveable. The grass outside the shop is in need of grass tuffs.
And just overall, don't use metal fittings too much, they look really bad especially on the latest pictures you've posted.
Other than that, keep going with the mapping mate!