The next thing I want everyone to do is always be comparing heights to wit. So I want us to check some of the widths against these heights that we've got. So take the one third measurement by a line at the bottom of the brush with the bottom windows and sliding the thumbnail up to the bottom of the chin. And let's check how many one thirds there are across the width of the face. So if we just align the bottom of the brush here, with the outermost point along the face, and just check to see visually where your thumbnail aligns to, you might have to move it up and down to sort of find something that's a solid to grab on to. In this case, it looks like it comes to about the tear duct.

So now we move the whole thing over and align the bottom of the brush with the tear canal and see how far from the tear duct is to the hairline. And I can see that actually the hair where it crosses over the jaw and comes back a little bit there is basically one more one third So the widest two points of the face is basically on this photo, two of the one third measurements across, we can check this final distance across the hair. And it looks like the hair itself is just under one third, in which so it really helps to always be comparing verticals to horizontals. If you get all the verticals, perfectly proportions in the horizontal there off the whole thing will it come to get proportion, and then the next thing that we're going to be using is called vertical plumb lines. So if you take your brush and hold it vertically, you can see where things are aligning vertically.

So if you align and look down one side of your brush, if you align that side of the brush with the pupil and look down the side of it, you'll see that the corner of the mouth is vertically aligned with the pupil and that actually works from all different angles. So the other one that we can do is horizontal plumb line. So if you take your breath just align it horizontally on the painting, you can check the horizontal placement of different features. So you can, as you called it off, you can see that one shoulder is clearly above the other shoulder, you can also follow the edge of the brush along to see the geometric size of the distance between this shoulder and the other side of the chin. You can also check and see the horizontal alignment of say, the two corners of the mouth.

As we hold this up against it, we can see more clearly that there is a certain tilt to the head, and this corner of the mouth is a little higher than the other corner because of the tilt of the head. So the vertical and horizontal lines are really going to help us as we go. And the last one which I really love is ankle measuring. So if you look at your portrait and find a nice strong angle that you want to measure, in this case, I'm going to be using the shadow line of the jaw and take one brush and align it to be perfectly mirroring the angle that you want to measure. And then you'll take the other brush and I'll show this the demo when we've got the basic teaching established and we know where that line is going to go. We'll just take this on a brush and put it where the lineup though and just make it parallel with the angle of the other brush so that now the two angles are basically mirroring the shape of that angle on the face.

And it would take this brush into this paint on it, just trace the line. So if these forms of measuring will really be able to establish an accurate underpainting