Thanks for the answers !
The bus compression (which is the C3 multiband comp) is definitely too much. The snare transient is crushed to hell.
In a few days, I'm going to the studio, to send the snare, kick, bass and vocals through some analog gear (Distressor, 1176...), and I hope to get a more natural touch to it.
The guitar tone is cool, but at the beginning I couldn't figure how to mix it. I recorded it very middy, and the guitarist wanted a lot of gain on the amp. I tried to cut tons of meds from the two mics and the guitar bus (especially in the 300, 600 Hz, 1 khz, and 5 khz, but it ended in sounding flat and thin. So I decided to keep it natural with little touch of EQ, and that's the result. The mix isn't very wide, but has more balls and you can easily hear the real tone of the amp.
If someone has some sugestions or advices on this, they are welcome.
That CD will be mastered by Peter In De Betou @ Tailor Maid.