Here are some pics of my K Line scale Pennsy A5 locomotive and tender. I bought it brand new in early 2019 and weathered it using pastels chalks. IMHO the slope back tender is what brings a special character to the A5.
To give it an added authentic look, ... I took special care to add spilled coal around the upper deck and slope of the tender.
I spilled coal on the tender's apron.
The A5 and it's tender on the layout in action. This Pennsy A5 has become one of my favorite locomotives to run on the layout. It's old weather beaten look blends right in with the era of which I model.