Thanks Philippe and William... and also thanks on behalf of the flutist.
I am still trying to sound more "musical" than "real" with these my first tracks, but I also think that the level of realism one can get from the Chamber Strings is amazing, especially with the short articulations. I also find the second mix more suitable for highlighting the fast attacks of the strings. I'll see if I can combine the close mic with the wet signal of a distant mic to further improve the mix (I haven't tried this yet as I am focusing more in knowing the different articulations)... or I maybe wait for the new second mic option of the upcoming version of MIR.
Many thanks again to both of you for listening.