sing the provided photograph as the base image, o...

Using the provided photograph as the base image, overlay the provided final illustration onto the back of the pink t-shirt. This is a realistic apparel mockup, not a redesign. The illustration must be placed naturally on the fabric, centered on the upper back, following the folds and curvature of the shirt. Do not redraw, reinterpret, modify, or stylize the illustration in any way. Do not change the hill shape, spacing, proportions, or logo placement. Preserve the exact line weight, composition,