How to Draw a Blood Donor Day Poster

1. These two sets of curves will be the start of a rolled up sleeve. Focus on the shape of each individual line—three curves on top, three on the bottom, drawn at about the 2/3 mark of your page. If in doubt, make it smaller than it needs to be—you need to leave room for the rest of the arm!

2. These three lines mark the foundation of the arm. Draw one from the top of your sleeve, and one from the bottom, both stopping at the midline of your paper. Then pull the back of the hand down from the end of the lower line.

3. Every artist is afraid of hands, so let's break it down! This simple curve makes the thumb. Notice how the back of the thumb curves back, and the pad of the thumb curves up to meet it.

The hand should be placed in the lower half of the page. We're leaving a lot of space right now, because we'll need it.

4. Draw two parallel lines. Then, add rounded curves on their ends to make two fingers.

5. Two lines slice across the hand to make the palm: One just below the fingers, and one diagonally across the palm. Make sure that they're at slightly different angles; this gives the palm depth. Also make sure the line below the fingers doesn't go all the way across the hand!

At this point, you'll be able to add in an open L-shape for the pinky, completing the hand.

6. Another diagonal line slices across the palm—if you need help placing it, look at your own palm, and the crease nearest to your thumb.

Now we add the blood draw! Notice how the bandaid puckers upward in the middle to give the drawing depth.

Make your blood draw line as curvy and coily as you like, but don't let it extend further than halfway up the page. You need to leave a lot of space for your blood bag.

7. Blood bag time! The basic shape is a simple rectangle. Sketch that in first, softly, with a pencil, then round out the corners. The place where the tubing connects is a small cylinder.

8. Trace around the inside of your blood bag shape, a short distance away from the outline. This gives the blood bag depth. Make one line extend slightly higher than the other—we'll use this in our next step!

Add a semicircle on top of the bag.

9. Connect your inner lines with a wavy line overtop, and suddenly, your blood bag is full of blood! Then place a little circle inside the semicircle, and your blood bag is able to hang from a hook just like the real thing.

Now we get to use all that space we've left in the upper-right: Draw the largest, plumpest heart-shape you can imagine. Use big, round shapes!

That's it! Take a moment to admire your work and to adjust if you see any cramped or empty space, because after this, it's time to color.