Hi everything is natural. Foal was standing by his mom, so that black backgrouns is his moms belly. Autumn morning light from the front and here it is Here's the first pic of foal and his mom before geting closer (or zooming,I don't remember now ) to them to take a shot for this pic [link]
Everything about this strikes me as gorgeous. I love the lighting, and I love how the horse itself is all you can see. It makes me feel like I'm leading the horse through a tunnel to somewhere without darkness... sigh, I wish I had a horse.