Click here to see test1.jpg
Click here to see test2.jpg
Technical note: I reused the original images for the thumbnails as well. This might look handy, but contradicts the usage of thumnails. So you want to create duplicated copies of your large images and save them as small versions. This way the thumnails will load fast and people who are interested in particulair thumbnails can click on them to wait longer for the larger version.