I'm back... I'm drawing again, I have time now. So, okay, I know that the rover opportunity was the one that everybody is talking about, but the curiosity i though it was harder to draw and with a lot more details, and unfortunately... I was right, this drawing took me like three days! I was about to give up, but... I finish it, and i think it's cool... Anyway i hope you like it.
Here is the process