I like 1 or 3 personally, the area was quite sparse and having the 3 "buildings" lined up along the back to try and achieve a sense of balance, ends up losing the realism IMO.
I love the station building, it's something that's on my list to do unsurprisingly, I really should make a start on getting all the buildings done rather than waiting for the space to build my W&U tramway model..... before anyone suggests a shelf layout for now, that space is taken up by my US shortline and sadly I don't have space to store one whilst using another.