This one is from the inside of the National Shrine of the Divine Mercy in Stockbridge, Massachusetts. It was painted by Maria Gama in 1945.
The other one is from the Monastery Icons company. It was painted by iconographer Photios Kontoglou.
Here's a close up of the bust area from the Kontoglou icon.
I really like Byzantine-style art, actually.
In her book -- Divine Mercy In My Soul - Diary, I've seen the "first image" of the original painting and it closely resembles (the face appears thinner in the book) the first painting posted by Pyro. However, probably because of costs, it's in black of white and not as clearly defined as the painting you posted.