Hi Francesco
OK, yes the first mix sounds better over all. But now you could try to bring the orchestra percussion "behind the rest of the orchestra" with a new convolution instance which simulates a bit more depth.
Also reduce the high frequencies of the instruments the farther away they are! ...
...As an example for this matter: Celtic Woman It is not the first time that I publish here this link because we can learn a lot from those mixes. There are playing a huge orchestra, percussions, a choir and several soloists. All those sections are beautifully mixed so that the whole sound comes very transparent. So compare for example the sound of the singers in the front with the one of the choire. The difference is huge concerning the high frequencies. This treatment is applied to all the instruments depending on the distance to the listener. This is one major trick to reach such a transparent mix. Listen also to the sound of other instruments (Strings, Percussion etc.). How do they sound?
Try to copy then all these "cognitions" into your mixes...
Beat
- Tips & Tricks while using Samples of VSL.. see at: https://www.beat-kaufmann.com/vitutorials/ - Tutorial "Mixing an Orchestra": https://www.beat-kaufmann.com/mixing-an-orchestra/