No problems, it is good that you are actively monitoring copyright issues. I myself like to be proactive that way too but it helps if you can use evidence to justify your claims so a little click work on your behalf could save you some embarassment in the future.
It is in his MJranum stock folder : Various - 9 . I commented on it at the time informing of use. You would have seen that if they had not been disabled since. Which image do you think I have taken it from... I only ask because I only use his Stock site and didn't take much notice of his art account.