FIG. 1 is a top perspective view of a wall shelving unit showing my new ornamental design;
FIG. 2 is a bottom perspective view of the wall shelving unit shown in FIG. 1;
FIG. 3 is a top view of the wall shelving unit shown in FIG. 1;
FIG. 4 is bottom view of the wall shelving unit shown in FIG. 1
FIG. 5 is a side view of the wall shelving unit shown in FIG. 1;
FIG. 6 is a front view of the wall shelving unit shown in FIG. 1; and,
FIG. 7 is a rear side view of the wall shelving unit shown in FIG. 1.