it seems to be organised for right line running, i.e. the assuming UP is the top track at the station, this would facilitate trailing point access to the storage, sheds etc , otherwise the loco would be trapped, as it went in facing. ( I suppose it could use the platforms to run around )
Also the branch line needs a connection to the mainlines, in reality it would never be just separated like that , perhaps the halt would be nearer top right to have a visual break with the main station
you could consider a connection to the first rolling stock storage siding back onto the running line to create a run round
as Noel said it might be better to avoid too many parallel straight track sidings in the station area, it was rarely that way in real life, Some stations had considerable amounts of parallel track but most hadn't
looks quite good other wise