Welcome at this place. We urgently need some fresh blood to show thir modelling skills.
Details in Gn15 Scale (1 : 24) are huge, compared to HO (1 : 87). So be prepared to count rivets and some nuts & bolts.
This Lister, built by Carlo from a Scotty kit has quite a few.
Even the tiny wooden wagon has 56 OZARK nut & bolt castings
So keep the pictures coming and