That one’s a classic “London guards” scene — it looks like two ceremonial cavalry officers riding black horses in front of a grand white-stone building with railings and lamps.
They’re wearing the iconic red tunics with fancy white plumed helmets and holding reins/spears as they pose for a ceremonial moment. The setting feels like the UK parliament / palace area, with a statue and garden vibe in the background—very painted/illustration style, like a poster or commissioned artwork.