Now and then i have the opportunity to add to a photo edit with makeup..mostly eyes and lips. but I'm not happy with the standard i have in this area.
Does anyone have any links or tips to help me improve with a specific area or in general?

Yes I do.  Talk to this guy #364873.  He is a great instructor and really tailors to what you are trying to do.  One of the first classes to truly change my editing for the better.

in Photoshop?
For eye make-up I sample the colour of the outer edge of the iris. Then I use a hard brush to 'paint' make-up over the eye, and a thin line under the eye. Use gaussian blur to soften the make-up.

(try a few different thicknesses and blur amounts etc. until you get the hang of it)

Mask that layer, and re-paint in the colour (the blurring bleeds the colour into unwanted areas)

Clip a Hue/Sat adj layer to the make-up layer. This gives you greater colour control of the make-up colours etc....

Finally, adjust the opacity of the make-up layer to your tastes.

@SSR Designs  Thanks for that link, the service looks great, in that session did you get any brushes and textures ext or were they extras?

@Blimey Studios  Yes in Photoshop. Thanks for that tip i do a similar technique already but never thought of using the colour from the eye.

I found this with a nice tut on make up in photoshop

http://psd.tutsplus.com/tutorials/photo … plication/