I love the typical Arabic lip, nude-ish brown, slightly matte and big on volume! I only use two tools for this, a lipliner and a nude lippy but to really make it 'pop' you could always highlight your cupids bow and go around your lips with concealer. I dont have a very full top lip in comparison to the bottom one, so the lip liner really helps with that lol
I have touched any of my pics up, I took pics in the bathroom and living room so the colour isn't the same in both pics lol The best example of the colour is in the tutorial pics. I didn't use flash in any of my piccies :]
I used a lipliner from N.Y.C, not sure what it's called but it's a lovely medium creamy brown, love it <3 I also used MAC innocence beware lippy.
Start off by outlning your lips, lightly go around the outside of your lip...
Go over your lips with the nude lippy one and then build up a couple of layers in the centre of your lips.