Question Applying Reflection Probe on Human Skin?

Hi all
I'm a beginner on Unity and developing 180 / 360 video player with object loader on request.
Made inverted sphere through this guide. ( http://bernieroehl.com/360stereoinunity/ )
Spawned metallic object with reflection probe and it looked good although I didn't use any light source.
(Maybe reflection probe works based on camera capture?)

And I tried this on human object and problem occurred. I changed parameters several times. (smoothness, specular color, etc) Reflection probe does work but it didn't seem natural. It seems metal than human skin.



So.. conclusion is here.
Is there any proper applying method for reflection probe on human skin?
Or any asset or custom shader exist that i can find or buy?
Thank you for reading.

ps.

I actually tried skybox with environment lighting and it worked anyway.


but there's video that neither cubemap nor equirectangular on request requirement. so probably I can't use skybox.

 

IBL is awesome
I use that for fake GI

 

Thank you for kind answer. I'll try it later