Thank you Sergio
The colors are mixes: Gris bleu clair is a mix with RLM65 (Gunze H67) + some white; gris bleu foncé is RLM75 (MrHobby H69) + some Gunze H328; vert mat is Humbrol 86 and Brun mat is Humbrol 160 + some Humbrol 118. As you can see, no problem in applying acrylics and enamels colors on a same model... Simply let dry before apply gloss cote (Future) for the decals