Even if I wouldn`t be able to read you come from France, I would bet on it^^ French Painters have a very unique characterfull paintingstyle which avoids grey as much as possible and give them instead of this more magical colorfull setup .
It looks really great! Maybe the Canon could get some more turkuis patinaparts and the red of the Canonwood could need a bit more deepth/contrast. Atm the cannon and the terrainpiece around are not looking "connected together" yet. Aside from that great piece of art!