Yes, that's from Mars:
This image is composed of a mosaic of 55 high-resolution photos. Apart from providing a great portrait of our beloved robotic emissary on Mars, these photos provide the MSL team with an invaluable means of keeping track of dust buildup and wheel tread wear. Although Curiosity is still relatively shiny and new, as the years march on, we'll likely see marked changes in its appearance. If its still-functioning rover cousin Opportunity is anything to go by, Curiosity will be coated in a rusty orange coat in no time at all.It's times like this that I feel like chanting U-S-A! U-S-A! U-S-A!