FIG. 1 is a perspective view of shower surround showing our new design; FIG. 2 is a perspective view of the shower surround with the door closed thereof; FIG. 3 is a top plan view thereof; FIG. 4 is front view thereof; FIG. 5 is an interior side view thereof; and, FIG. 6 is another interior side view thereof. The broken lines showing of a tub are for illustrative purposes and form no part of the claimed design.