How can i archive this lighting in Linear Color Space

Hello everybody,

im struggeling with a little problem for some while now: I know that everybody say that LinearColor space is more Realistic - but it does not look like that either. Here are 2 pics of my Scene:

GammaSpace: http://prntscr.com/jm9mqb LinearSpace: http://prntscr.com/jm9n33

I think that in the GammSpace pic it really looks like the sun is shining etc... and the linear looks more like a game :/ but i want to render in linear because some of my shaders look better in it . Does anybody know how to get the real lighting in linear? Pls help me :/

Thanks in advance!!!