Hello andrea, i think you are italian but forum is international so i write in english...
many bad things to tell you but i hope you will improve anything...
first thing your mix is too rich in mid frequencises, too poor in LF and HF... i suggest you to improve your monitors and to use a spectrum analyzer too...
snare is too high and distorted.... many other things but i think you have enough work for the first one...
BlueTigerMastering studio gears:
Apple Mac M2 + Softube Console 1 + Weiss/TubeTech plugz TC Electronic Clarity metering system
Audiolab M-DAC and Cyrus pre and DAC
Dynaudio BM15A, Mackie HR824, Yamaha HS7 monitors + SVS subwoofer Sony MDR-EX500 in-ear headphones
i forgot... clean intro and outro by electric noise from guitars...
BlueTigerMastering studio gears:
Apple Mac M2 + Softube Console 1 + Weiss/TubeTech plugz TC Electronic Clarity metering system
Audiolab M-DAC and Cyrus pre and DAC
Dynaudio BM15A, Mackie HR824, Yamaha HS7 monitors + SVS subwoofer Sony MDR-EX500 in-ear headphones