Train MOCs are frequently accused of being nothing but boxes on wheels. While this is usually true a little texture goes a long way as the above model indicates. See more from this builder.
Highlight this line for builder’s name: Swoofty
PS. I’m trying a little experiment at the moment and leaving out direct mention of the builder’s name (it can be found in their gallery). I think it’s nice to give us a chance to judge the model regardless of its creator.