FIG. 1 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush;
FIG. 2 is a left side elevational view of the makeup brush of FIG. 1, the right side elevational view being a mirror image thereof;
FIG. 3 is a rear elevational view of the makeup brush of FIG. 1, the front elevational view being a mirror image thereof;
FIG. 4 is a top plan view of the makeup brush of FIG. 1;
FIG. 5 is a bottom plan view of the makeup brush of FIG. 1;
FIG. 6 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush according to a second embodiment;
FIG. 7 is a left side elevational view of the makeup brush of FIG. 6, the right side elevational view being a mirror image thereof;
FIG. 8 is a rear elevational view of the makeup brush of FIG. 6, the front elevational view being a mirror image thereof;
FIG. 9 is a top plan view of the makeup brush of FIG. 6;
FIG. 10 is a bottom plan view of the makeup brush of FIG. 6;
FIG. 11 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush according to a third embodiment;
FIG. 12 is a left side elevational view of the makeup brush of FIG. 11, the right side elevational view being a mirror image thereof;
FIG. 13 is a rear elevational view of the makeup brush of FIG. 11, the front elevational view being a mirror image thereof;
FIG. 14 is a top plan view of the makeup brush of FIG. 11;
FIG. 15 is a bottom plan view of the makeup brush of FIG. 11;
FIG. 16 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush according to a fourth embodiment;
FIG. 17 is a left side elevational view of the makeup brush of FIG. 16, the right side elevational view being a mirror image thereof;
FIG. 18 is a rear elevational view of the makeup brush of FIG. 16, the front elevational view being a mirror image thereof;
FIG. 19 is a top plan view of the makeup brush of FIG. 16;
FIG. 20 is a bottom plan view of the makeup brush of FIG. 16;
FIG. 21 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush according to a fifth embodiment;
FIG. 22 is a left side elevational view of the makeup brush of FIG. 21, the right side elevational view being a mirror image thereof;
FIG. 23 is a rear elevational view of the makeup brush of FIG. 21, the front elevational view being a mirror image thereof;
FIG. 24 is a top plan view of the makeup brush of FIG. 21;
FIG. 25 is a bottom plan view of the makeup brush of FIG. 21;
FIG. 26 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush according to a sixth embodiment;
FIG. 27 is a left side elevational view of the makeup brush of FIG. 26, the right side elevational view being a mirror image thereof;
FIG. 28 is a rear elevational view of the makeup brush of FIG. 26, the front elevational view being a mirror image thereof;
FIG. 29 is a top plan view of the makeup brush of FIG. 26;
FIG. 30 is a bottom plan view of the makeup brush of FIG. 26;
FIG. 31 is an isometric view of a front, top, and right side of an ornamental design for a makeup brush according to a seventh embodiment;
FIG. 32 is a left side elevational view of the makeup brush of FIG. 31, the right side elevational view being a mirror image thereof;
FIG. 33 is a rear elevational view of the makeup brush of FIG. 31, the front elevational view being a mirror image thereof;
FIG. 34 is a top plan view of the makeup brush of FIG. 31; and,
FIG. 35 is a bottom plan view of the makeup brush of FIG. 31.
The dash-dash-dash-dash lines are for the purpose of illustrating environmental structure and form no part of the claimed design.