This Photoshop tutorial teaches intermediate composition techniques including color balancing, hue/saturation, and blending modes. Over the course of 11 steps, the tutorial guides the user in combining various stock images to create a Halloween-themed composite scene. Key steps include adding images like a witch, pumpkins, and clouds; adjusting colors of elements using tools like hue/saturation and color balance; and refining the composition by erasing certain image areas and overlapping elements. The final result is intended to enhance the user's skills in professional image composition and combining multiple assets into a cohesive design.