Rhenus

Rhenus Pater, Father Rhine, personification of the river Rhine.

No boring old man for me, but a vaguely gallo-roman looking young guy (who is wearing a type of brooch that was actually worn by women, poor guy, but we have evidence that Germanic men wore them also, so he can too The type of brooch is called "Distelfibel" in German, no idea what it is in English, but they are beautiful).
I tried to make his pose emulate the shape of the Rhine, but that was difficult.
He started out with more boring clothes, then I had the idea of making the cloth change into water and now it's way more awesome

The map shows a few important Roman settlements by the Rhine:
For the province Germania Inferior:
Colonia Ulpia Traiana (Xanten), Colonia Claudia Ara Agrippinensium (Köln, Cologne), capital of the province - both of which are sadly on the wrong side of the rhine, but I couldn't cram everything on the left side - and Ulpia Noviomagus Batavorum (Nijmegen). Noviomagus was neither very big nor very important but I put it on the map for ~Dolaria who accompanied me to the Het Valkhof Museum in Nijmegen to see the archaeological finds.
For the province Germania Superior:
Mogontiacum (Mainz), capital of Germania Superior and Augusta Raurica (Augst), which was also called Colonia Augusta Rauricorum, but today the name Augusta Raurica is mostly used so I chose that.

The geography is rather awry XD The coast line is pretty much as it should be but the rivers... never mind