Don't be bashful! If you want comments, give comments. You don't need to be an expert photographer to express your opinion about the work of others. You don't need to go into great depth. A simple remark about cropping, composition, color, subject matter, etc. can be of just as much help to a budding photographer as an in-depth critique.
For this assignment, capture a dramatic late afternoon image in which the direction of the light and quality of the light is the principal compositional element. Rely on the quality and direction of the light to create the drama. See what you can do by waiting for just the right light. Don’t be in a hurry, slow down, and observe. You might be rewarded! Post your best results to the Web site.