copyright legal requirements

Throughout the presentation I have various logos and images to help make my presentation look more professional and better presented. The first image I have used in my presentation is the owl on the first page. However I did not create this image I used it from this website; http://www.loripuente.com/book-in-the-works/ therefore I do not own the copyright for this image so I cannot take credit for it. The next logo I made myself is the one who is on the first frame I made the logo look like a book with a pair of glasses this is because this may reflect intelligence and reading which may link to English. The final piece of imagery that I have used is the photo of classrooms around the school and students work. I own the copyright for these images as I have taken them round the school however the images of work is not my own pieces of work it is from English students from Kingswood.