You need six images for each of your pages.
For the Index (home) Page, the images can be of anything you are interested in.
The other pages need images more specific to the topic:
Places - You have been to, or would like to go to.
Interests - Your interests and or hobbies, or sports.
Fav Foods - Foods you like.
The My Music page needs six soundtracks and an image for each artist/group featured on the soundtrack. You will need to look at the Music link before searching the images.
First how to find the image size in Google Images.
In Google Images, search for the images you need for you website.
On the Google Image Thumbnails Page run the mouse over the thumbnail image and on the bottom left the image size will appear in pixels.
If the image is more than 480px wide you can use it, but it cannot be not less! You can always make a large image smaller, but not a small image larger.
Then click on the image for the full size image and then save that image (not the thumbnail) to your website folder. The size on the left is the width.