Most pictures you find will be copyrighted and you would need permission from the photographer to use them. I have seen many people get in trouble for that sort of thing. I suggest you take your own picture or make sure you have permission to use the one you find.
As a homebrew, I asked a local country farm store if I could take a picture of their place and this cool old ford truck for use on labels. They guy said "sure, will bring me a bottle?" Of course I brought him a six pack. And all was good.
Until he learned that we had obtained a brewers notice. He called and said he only gave permission as a homebrewer and if we wanted to use it on a pro-label, he wanted to "talk about that." My assumption is he wanted a payday. But, as we only keg our beer, I didn't proceed.