Bastien,
Overall a nice job, but there's a couple tings to watch out for:
- The model really needs a flat overcoat, like Dullcote or Floquil Flat or the like (unless it is supposed to be a rainy day, in which case it's just right.).
- If you are using the kit barrel in the Academy kit, the small piece for the muzzle has to blend seamlessly into the rest of the barrel. there is no joint or step there and, unfortunately, it's a place that naturally draws your eye.
- When painting rubber items on a model, like the track pads & tires, a dark grey is a better way to go than straight black.
- unless it's a wet day, there needs to be a general lightening of colours of the running gear with dust. Tanks kick up lots of dust and, on most vehicles, it's actually impossible to tell what the colour of the lower hull & running gear are for all of the dust & mud tha covers everything.
HTH
Paul