I built this kit a number of years ago Roberto .... and it's a bit of a bear to build.
You've done alright with it.
Good work on the tracks, subtle weathering and the details stand out nicely.
Small critique ... you have a bad joint right on the nose that could use a little filling. Or some well placed mud to cover it up.
Good improvising on the hatch !!!
Thanks for sharing with us and I hope this won't be the last tank we see come from your workbench.
Happy Modelling and God Bless
Robert