A method for displaying a target individual includes receiving a plurality of reference markers that characterize a target individual and selecting a first reference image file and a second reference image file from a database. The method further includes displaying a first graphical representation and a second graphical representation over a visual representation of the target individual. The first reference image file is associated with a first anatomical layer and the second reference image file is associated with a different anatomical layer. The method additionally includes modifying at least one of (i) the first graphical representation or (ii) at least one of the plurality of reference markers. The method also includes displaying, on a display, a modified visual representation of the target individual based on the modified at least one of (i) the first graphical representation or (ii) the at least one of the plurality of reference markers.