They are in a "typical" Swedish wedge shaped charge which looks right.
I have a palsy in my right hand which can be quite vexing so I tend to use inks at this scale. Various browns (Burnt Umber, Sepia and Antelope Brown) with different amount of thinners for the horses and thinned Prussian Blue for the uniforms. Hence the white undercoat instead of the more traditional black. To get the yellow facings to stand out, I had to do a quick dab of tan first. At this scale I am not interested in painting every little detail and the uniform shade might not be 100% accurate. But they look like Swedes on horses and I can tell which direction they are facing.
When I was painting my Ancient Spanish for Hannibal's army, I used contrast paints instead of ink to get a lot more variety and they came out really well.
To do the hat lace and the gold trim round the flags, I deployed my secret weapon. Gel pens. I cannot recommend them enough for this scale and 15mm too. Store them on their side, not tip down or up as gravity does bad things to them. I thought they deserved their own photo.
Final shots of today's unit charging one of my Russian battalions. In this scale the massed ranks really look like a battalion, even though the footprint is the same as 12 15mm figures.