Hi Hanh, I totally agree with Peter. Your vase can not be Qianlong M/P. .
vase by: peter
Hi Hanh, Yes, it is a Qianlong mark. Unfortunately, one look at the dragon shows that it is a fake. Apart from the colors, the scales, claws, tail and other details are plain wrong for Qianlong. To me the dragon looks like a modern creation. The vase shape is also nothing traditional.