Pass title of current node to subsequent node created in modal
If your form is not loaded via ajax then you can write a form alter hook in your module and alter the photo node form and provide a default value for the title field of the photo node form. You can either query or do node_load() of the current review node to get the title. You can retrieve the nid of the current node by the arg(1) function.

When you have the title of the review node you can assign it as the default value of the photo node.