I cant say that this is bad or good. First, tanks are never that exotic. Second, the right side of the tank is uncolored. Last, you did not color it well. Might want to take more time on this.
This is a pathetic excuse for a recolor. It's poorly cropped. As you can see, the barrel of the tank is cut off, and yet there is still some white space to the right of it. The colors are so unfitting that it isn't funny. It's as id you just took a bunch of random MS Paint default colors and used the color fill tool and just filled all the white spaces with random colors. And even if you did, you didn't do a good job as you can still see lots of white pixels on the tank.