help with a graphic

Hi, i hired someone for graphics, and now I have run across the same graphic that this person states she designed, It can up with a link into tech it is a poodle that says on it rain poodle. i need to find the artist of the graphic as it is on my site and I beleive it is there illegally…
if you google rain poodle for images it comes up someone please advise me on this./
renee