Oil everywhere after dealer changed the oil

I’ve had my car for four to five years about a month a go was the first time I took my car to this specific dealership for an oil change. After that I started to have an oil leak and smoke and a terrible burning smell. When we opened the hood it was everywhere. On the hood drilling down pretty much every where. We had some one change a gasket, we changed the oil filler cap and nothing. Also, called the dealership and they asked if I took pictures the first time it happened which I did not.