A layout sketch, by the awesome  werew0lfyiff , for Max’s arm markings. The perspective this is drawn from leaves the inside of the forearm facing the viewer in the foreground, with the back side (elbow side) in the back ground of the translucent forearm model. The parts outlined in black are in the foreground, and the more faint parts are in the background. The lines on the outer edge of the drawing are the outsides of the arms in line with the shoulders, and the lines toward the inside of the page are the sides of the arms closest to the body that meet the armpits. The palms are facing the viewer with both thumbs facing out, leaving the profile of the arms as if you were facing max, with front facing palms. If trying to draw the opposite side of the figure, remember that the back side of the markings are inverted due to the front facing perspective of this piece.