-- No, because the image is still not yours. You shouldn't be parading around an image and saying it's yours when you didn't actually make it. As an artist, I especially know how irritating it is when someone says a drawing is there's or doesn't even bother to cite it. Don't be a jerk, cite your images or else face a watermark or copyright infringement.
2. How long does a copyright last for?
-- Copyright lasts for quite a long time, nearly 100 years in some cases. There is no real limitations to it and a lifetime may go by before it is lifted on a book or idea.
3. A Creative Commons license allows someone to take the image and manipulate, modify, or change it as long as the original image is cited.
4.
Armando Rivera. Little Princess//La Princesita 8. April 12, 2012. Flickr. Yahoo. Web. October 26th 2015. <https://www.flickr.com/photos/armandoh2o/6932805860/in/photostream/>.
Because in my story the main character is a princess and escaping from a forced marriage, this image reflects how she ran away feeling exhilarated and smug about the whole ordeal.
b.

Pink Sherbet Photography. Girl Holding Book Looking out Window. October 24th, 2009. Flickr. Yahoo. Web. October 26th 2015. <https://www.flickr.com/photos/pinksherbet/4046234527/>
My character at one point looks longingly out a window, wishing she could run away from her forced marriage, and so this fits her perfectly.
My character at one point looks longingly out a window, wishing she could run away from her forced marriage, and so this fits her perfectly.
5.

Horses. Jupiterimages Corporation, 2006 . Image.
Discovery Education. Web. 26 October 2015. <http://www.discoveryeducation.com/>.
At one point Lia and her friend Pauline ride on a horse and have to hurry out of town, so this represents when they escape the palace.
