I was commissioned to reproduce a 15th century mural from a Palace in India. The client only had a lo-res jpeg. I did a search online and was able to find a hi-res file that cost me $35, But it was so worth it to be able to zoom in and see details. This was my first attempt using oil paints and it was quite the challenge. I accidentally used a slow dry linseed thinner which extended drying time 10x what it should have. I switched to regular paint thinner and a quick-dry medium thinner which worked well.