FIG. 1 is a first perspective view of a pet enclosure showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is an enlarged view of the selected portion in FIG. 1; and,
FIG. 10 is an enlarged view of the selected portion in FIG. 1.
The broken lines shown in the drawings depict portions of the pet enclosure in which the design is embodied that form no part of the claimed design.