First off, start with drawing the head. Draw this shape shown in red, this is the top part of the head of your Zergling. Place the eyebrow lines, the eyes will go below these.

STEP 2.

Now draw in the eyes. Place them underneath the brow ridges. Try to make them equal on both sides, same size and same distance apart since the Zergling is looking straight on. Also, mark in the gum/teeth lines, where the jaws are open, showing where you will put in the teeth later. Draw in the shape of the tusks as shown and define the nostrils.

STEP 3.

Now draw in the carapace shapes as shown. These are like plated scale armour, and they overlap down the Zergling’s back. Also place in the same shapes onto the top of the head, to show how the carapace continues.

STEP 4.

Here, the blue shows the basic skeletal structure of the limbs. You can draw these faintly to help you position the legs. Follow the red, adding in muscles and bulk at the right areas. Do the same for the back leg, putting in muscles where you think they should be.

STEP 5.

Now draw in the upper arm, placing them the same way as you did for the other limbs. Define the chest, under belly and where the tail starts. Make the carapace get smaller towards the end of the Zergling’s body. Also, add in the teeth as shown. Add in a chin, and also the parts that attach the tusks to the head.

STEP 6.

Draw in the tail, position it how you believe looks right. You can have it bending a lot more than I have done, depending on if you want it to be a ridged tail or not. Now place in the other legs for the other side. This may seem difficult at first, but just try and think about where the shoulder and hip joints are on the hidden side in relation to the ones you already drew. Also, make sure where the feet meet the ground is slightly higher than the ones to the front. This will help the creature seem more real, and that it is standing on actual ground that disappears in the distance.

STEP 7.

Now rub out your construction lines, and start to add in the permanent detail lines. Decide where you want your light source, so you can place shadows on the right sides. I chose my light to be coming from the top right hand corner of the page. There fore, you can see here in this close up, that the left sided lines have been darkened. Also, start to add in faint lines for little details for the textures of the skin. Hint at wrinkles and lumps to give the drawing more depth. You can keep the eyes white, or make them completely black, or add in pupils, its up to you.

STEP 8.

And you’re almost done! Continue to add in all the dark lines showing where the light doesn’t hit. Add in some more interesting textures, like I did for the Zergling’s underside. I added in some veins to the legs for extra detail. Once you are finished, you will now have line drawing in front of you, which you can go on to colour if you choose. You can colour with pencils or paints, or scan it and paint it digitally with Photoshop or even good old Paint! Or you can keep it how it is, or shade it, and there will be a second part tutorial on how to do that.