Strong graphical image. I don't necessarily see the despair, since death is a natural part of life, just part of the cycle. I mean I know death has the sting of separation from loved ones, but I think your real strength here is the lines, and pattern of the headstones. Good!
I thought I would see more gravestones in this challenge but there really weren't all that many. This is my favourite of them all. You have a great capture here, every gravestone is fully in focus. I love the way that they are all not straigt but tilted in different directions. Good one!
This would have worked in the rhythm challenge. I like the gradient of colors. I can't say it really fits despairing, though - death is a good deal more final than emotion, and a pretty different realm altogether. Nice picture, though.
Good use of colour and light to create mood. The border works at some points and distracts at others. The white in the top left corner is a bit distracting, might have cropped it if I were you.