OK, UC. Constructive critisism here goes:
- The wooden supports go directly into the lake. A perfect recipe for rot in the supports and algae troubles in the water.
- The stairs at bottom right (first and third pic) appears to be viewing stands or leftovers from a demolished building. If it's the former, get some fences on them. If it's the latter, well... then no problem.
- There appears to a quite long strcethc of track over the cattlepens where the supports don't touch the ground at all. Either make the fences go all the way up to the rest of the supports, or remove the supports in favour of a structure designed for spreading the forces over to the other supports. The way it is now, you've got a lot of heavy wood supporting nothing, only dragging the track down.
That's my two pennies, at least.