If you are a photo blogger then Photos theme is for you. Photos is a single column blogging theme which showcase your photos in a grid format. Photos is basically an image-oriented theme with a simple and clean layout, designed to help you showcase your loved or favourite snapshots. Here I am sharing you css styling code to modify the theme so that you can give a look of your choice. You can check the demo of Photos theme by Automattic.
Download Photos Child theme
You can ask question regarding any issue you are facing.