If you look at a real stock photo site you see the professionals put in a ton of extra work, eg they'll have maybe 20 photos built around the same model/theme so that if one's not quite right another is, or to give a feeling of depth above and beyond individual pretty photos.
Personally I would not use this service. Stock photography is already cheap and it's already hard enough for photographers to make a living without competition from free, even if it's not free-as-in-beer. I would much rather buy the rights or do the work myself than spend all my time wandering around the Libre Landfill. A term like that might sound cruel or dismissive, but I don't care for the way that the cult of the amateur and the availability of very cheap technology has massively devalued the craft of professional photographers. This is part of a much longer historical trend in which the artistic/creative input to a piece of work is systematically undervalued and more is invested in marketing it than producing it. Selling is important, but the problem is that salespeople generally don't care what they sell as long as they get paid for doing so.
"0 Results for silly face"
It also returns actual bees, but why the beer? Is it not an exact match search?
Edit: I get the intended scrolling mechanism when I page down in Firefox, but not in Chrome.
Sounds like you need to switch to a high performance browser. https://news.ycombinator.com/item?id=10342407
Gratis - Free as in Beer
Libre - Free as in SpeechHopefully it changes if your site picks up steam.