Maybe these free images could help you out in a way:
http://pixabay.com/
http://www.imcreator.com/free
http://www.imagebase.net/
http://unsplash.com/archive#_=_
http://picjumbo.com/
http://www.publicdomainpictures.net/
http://www.freestockphotos.org/
https://picjumbo.com/
http://stokpic.com/
https://plixs.com/
https://www.pexels.com/
http://freerangestock.com/
http://www.stockvault.net/
http://www.freeimages.com/
http://morguefile.com/archive
http://www.stockphotosforfree.com/
http://www.rgbstock.com/
http://www.freemediagoo.com/
https://canweimage.com/
Sent from my Samsung Galaxy smartphone.