Pixabay has stunning repository of high quality images. All the images available at Pixabay can be used without attribution in digital and printed form, even for commercial applications. This is small set I liked for kids related subjects.
If you think you have a beautiful picture of your baby or toddler or kid that you allow the rest of world to use in their websites, brochures, designs, banners for FREE then you can contribute the pictures, we will include them on this page. To contribute a picture you can simply upload your images on WeTransfer and send your images on my email – firstname.lastname@example.org