Help- looking for instrumental epic/ fantasy music

Hi there, my question will be little bit trick I guess, because I need from you advice or tip to music with following description.

In last days I try to find cross over whole internet some instrumental music footage with epic or fantasy atmosphere, it could be from movies as a soundtrack or pc game or whatever from...

But the main term is that I love nature guitar and in the best way it could be added on background with some other instrument to make whole epic/ fantasy style.

for better understanding what I mean I attach two great examples, the first one is absolutely amazing, it is from recent pc game Witcher 2:



Other good example is from another pc game:



If everyone will be have something on mind, some tips some similar music, please share it with me, I will be very pleased :)

thanks a lot...