My dear Kostis,
Only a man with a beautiful soul and a great hart can make such a diorama.
All the many questions I had for almost a year about 'what and how' are answered by the pictures of this final work.
I can not see the rat yet but we all expect many close ups of course.
Well done well done. The overall composition works surprisingly well. That is because you direct the attention of the spectators to the left side by different ways: there is Grandpa lifting up his youngest child, but also the scenery buildings behind him are the highest here. So it is very a-symetrical - used in a perfect way. Even Rembrandt would be satisfied with it.
Another successful decision of yours is the diagonally situated road. This saves the overall composition from becoming too square.
To my taste your use of colors for scenery and figures is remarkably good. It looks very realistic, a little bit worn out and dirty here or there, and at the same time its very colorful, romantic and attractive.
Apart from the remarkable clothing patterns that have been praised so much in your WIP report already, I have to say your use of small vegetation, grass and vegetables is as good as one can get it. Well done well done my friend.