Apply painter’s tape to define two nested arch shapes in the center of the canvas. Mix deep terracotta acrylic paint into your spackle for the large outer arch, and a peach tint for the inner one. Apply the textured terracotta spackle first using a palette knife for the outer border. Apply the smoother, lighter peach compound to the inner arch, slightly overlapping the terracotta at the bottom junction. Use a clean palette knife to gently blend the interface, feathering the lighter color into the dark to achieve a seamless, textured ombré transition.

3. Sage Green Arched Relief and Floating Shelf