Ciao Tommaso,
I have few suugestions, for you, your design typograhy / fonts is almost good, but part which not good, is combination color.
So you used almost gray color, that is not so good, in that way you kill visual look, any way in logo you have two very good color which can open this web to be interesant for visitor, and eyes like. also size padding that must take care about that.
1. Logo is 15px by default left, positioned, / advice if have 15px left - give him from all side to be 15px and be pefect/, not like in this design left 15 top 0 right 0 down 0px - TRY AND see result, not problem because Hader be 15px more down, that is ok
2. About design as i say before, maybe try to open this web ti have much better visaul look
https://imgur.com/a/HohcXth
Notice: i not postioned logo as i say before - that must to do self.
Also this shape can be blue, try that, this is idea
3. Also when used shadows, you must take care to not to be to much darknest try this options and see its looks better: 3px 3px 20px #d8cbcb
4. Animations- That is great tools, but sometimes we can do more than need, in you case you give, example that shaked animations not need, for serious company web, every discrete animation is allowed, but it does not need to be overused
5. At first page, where is ENG ITA, background try to use over color blue from logo or red maybe looks better,
About Complete WEB - This is good work, and i liked, only try to open this web not to be to much gray,
All this is suggestions, not a critic, so you decide what think is best for you,
Best Regards
pajadt MA Graphic Design