How to Apply Makeup on Gimp

A photo editing software. Click here to download Gimp.

Eyelash brushes which you can find on Deviantart. Just search: Gimp Eyelash Brushes
(The link goes to the search term in Deviantart.)

A photo of a person, preferably forward facing so that you can apply the eyelashes properly.

Some spare time. The process takes me about 15-20 minutes.

A bit of photo editing experience. You'll want to have watched a couple tutorials or completed a few projects so that you understand the lingo.

1. Open up a photo of a person on Gimp and make a duplicate of the background layer. On this layer, use the heal tool to smooth out imperfections in the skin. Use the blur tool to smooth out the lips. This is much like exfoliating the lips in real life. If it looks a bit too blurred, turn down the rate of your blur tool.

2. Once everything is nice and soft, create a new layer. Turn down the opacity to around 40-60 and use a color from the lips as lipstick with the paintbrush tool. Blur around the edges to create a natural effect if needed. Adjust the opacity until it looks right.

3. Create another layer and grab a color that matches your model's eyes. Draw some eyeshadow on the upper lid. Adjust the opacity of the layer so that the eyeshadow looks pretty real. Then blur at 100% rate until a realistic eyeshadow has been achieved. If the shadow is too faint after blurring, you might want to turn up the opacity of your layer. Repeat on the other side.

4. Open a new layer. Grab your eyelash brushes and adjust the size to suit your model's eyes. Make sure the color is a black or dark brown hue, depending on the colorations of your model. When the brushes are the right size, just click down to apply the eyelashes. You might want to adjust the opacity so that the lashes look real. Use the matching eyelash brush for the other eye.
If you want you can use a lower eyelash brush as eyeliner. If you don't want to do that or don't have lower eyelash brushes, repeat step 3 but in a thinner line on the lower lids.

5. Create another layer. Grab a color from the pinkest part of your subject's cheeks, or select an appropriate bronze color. Draw it along the model's cheekbones just as you would real blush or bronzer. Use the blur tool to blend and adjust the opacity until you have a realistic blush.

You're done!

To the right is a photo of some teeth before and after whitening.
Scroll over the image to see who they belong to!
Instructions:

• Create a new layer. If the teeth have any whiteness at all, collect a color from the whitest area of the tooth. If they are completely yellow, just get an off white color. Pure white doesn't work because it's too harsh and will look fake.
  
• Color each tooth, but don't completely fill in the teeth as that will create a blurry and blended look.
  
• Turn the opacity of your layer down to around 20 and blur. Adjust the opacity until everything looks real.