Whew! Am I glad that I undertood french! First JC, I found the TINTIN model shark sub somewhat on the "skinny" side when compared to the sub in the comic, although I liked how you detailed it, is the figure inside the sub Tintin or another person? (Perharps Capitaine Haddock?:D) Also they is another sub that appeared in the Tintin movie: "Tintin et le Lac au Requin" ("Tintin and shark lake" in English? ) Rastapopoulos's (Is that how you spell his name? If so, I'm good! ) submersible that he used to escape.
P.S: The submersible's conning tower closely remembles to that of a U-boat. From my point of view, of course!