Make sure you wear proper safety gear and make three simple cuts. Make your first cut at a slight angle, no more than two-thirds into the tree. Make a second cut to form a wedge. Then make a final cut on the opposite side, cutting into the wedge from above. Cut carefully, watch for the wind, and the tree will fall safely away from you.
When lighting a sloped wall or a tight space, consider fiber optics. Light from a projector travels through fiber optic strands to a glass brick or other fixture. One line voltage lamp can operate up to 20 glass bricks as bounce light or accents lights. In a mural, individual fiber optic strands create stars for dramatic effect.