The concept for this shield was made by Pierre Raveneau. You can find his art station here : https://www.artstation.com/asahiart
I blocked out the shape of the shield and size in 3DS Max. Then I took that into ZBrush and sculpted out the details for baking in Substance. The texturing was pretty fun to mess around with and didn't take too long. The render was taken in UE4.