Paper wall peeling back into a 3D forest illusion

A cozy room where the wall looks like a giant paper illustration, flat ink lines and watercolor washes, yet a corner of the paper wall is peeled back, revealing a fully 3D forest behind it. The peeled edge curls outward like thick cardstock, casting a real shadow on the illustrated surface. The illusion: the 2D drawn objects (a drawn lamp, drawn shelf) cast realistic 3D shadows, while the 3D forest casts faint ink shadows as if it's becoming a drawing. A cat sits half-in, half-out: front paws in 3D forest moss, back body in 2D sketch form, seamlessly blended. Soft morning light, gentle pastel palette, tactile paper fibers visible, high detail, whimsical but believable mixed-dimension realism.