Create a close-up image of freshly baked cookie bars in a rectangular baking pan. The bars are golden brown, dense, and filled with vibrant Reese's Pieces in orange, yellow, and brown colors scattered across the top. The texture of the cookie bars is slightly crinkled, with a gooey center and crispy edges, giving a homemade, warm feel. The Reese's Pieces candies add a colorful and festive look, with some pieces slightly melted into the cookie surface. The image should evoke a cozy, inviting atmosphere, perfect for a sweet treat