Drawing lighting on peoples skin, sweat, or reflections?

Question:I am a very talented drawer for my age (teen), in sports people. I'm good at drawing detail, but I want to know badly, how to color/draw sweat, or shiny people, or reflefctions?

http://sportsillustrated.cnn.com/multime...
Notice the helmet. How do you draw reflections like that?

http://sportsillustrated.cnn.com/multime...
Look how part of his skin is bright white, because of the lighting. Whenever I try to draw that, it just looks like white stripes, going down the sides of his arms, instead of lighting.

i don't think I need to link an example of sweat, but when I draw sweat, it looks weird.

Help would be appreciated.

Best Answer - Chosen by Asker: I am a very talented drawer for my age (teen), in sports people. I'm good at drawing detail, but I want to know badly, how to color/draw sweat, or shiny people, or reflefctions?

http://sportsillustrated.cnn.com/multime...
Notice the helmet. How do you draw reflections like that?

http://sportsillustrated.cnn.com/multime...
Look how part of his skin is bright white, because of the lighting. Whenever I try to draw that, it just looks like white stripes, going down the sides of his arms, instead of lighting.

i don't think I need to link an example of sweat, but when I draw sweat, it looks weird.

Help would be appreciated.

A lot of that is down by shading with a lot of contrast. Like what you said, their are parts on both the helmet and the mans body that are almost light, and those are highlights.

The way I've found to make them look realistic is to create deep contrast. I'm sorry, but I can't really describe it better then that.

Hope I helped, and good luck :)

u can draw out the thing that u want but once ur drawing something that u want a reflection on leave the color of it blank.than once ur done than u can draw the reflection on the blank part.than u can finnaly color in the rest of the blank