Who would not say, but there are only two (2) key the display options for sites and portals:
Ideally, your picture or image should meet for the first time on your site for search engines. Google, Yandex, Aport have to see the photo on your website and say, "Wow !!! Nowhere else I have not seen this picture! This photo is unique !!! "
If you take photos with other sites, the search engines lower your ranking in the SERP.
And this is only half the problem. The second half of trouble - if you are in a legal constitutional state, the owner may still photos and in court you apply! What about copyrights!
If you are unable to take pictures and make your own original photographs, at least google them plainly and emphatically.
Here are the instructions below:
Images - Search Tool - Use Rights - with a license to use and modify the
The quality of the picture.
A good picture can be selected via the filter size.
And you can pinch in Photoshop by pressing Shift + Ctrl + Alt + S:
So, we have with you now have a free and high-quality images for the site !!!