create a lifelike interior render of a covered horse arena featuring a central row of structural steel posts running the full length of the building maintain the existing roof lines and proportions but replace all timber ceiling beams and trusses with clean modern steel members exposed painted light grey and detailed with realistic bolts and connections use natural daylight entering from open sides and end walls to highlight the steelwork and sand footing include two horses for context one being ridden and one near a jump or rail add subtle arena details such as kickboards dressage markers and post and rail fencing at the perimeter the overall atmosphere should feel contemporary functional and true to a modern equestrian facility
