All of these websites should give you a great start for curating and developing your own unique images. Here’s another tip to getting original artwork on the cheap:
If you fall in love with a particular image that requires you to pay a royalty, yet still does not provide you with the full image rights here’s what to do: hire a decent artist on Fiverr.com to look at the image and create his own version of it. Not a copy mind you, but the designer can capture what really connected with you (color palette, scenery, etc.) and make a similar rendering for $5 to $20 usually. You get an original picture and all the rights to it, forever.
You’ve got plenty of options now for sourcing killer image content for your website, social media posts, and ad copy. Stand out from the crowd – leave that girl with the headset alone!