Hey Albert, good job on the master copy. Color are very close but there is not edge control at all. I don't want to emphasize on edges too much on you cuz you have to really focus on composition and value at this point. But just keep in mind. For the blimp can you do little more design stuff coming out vertically on the front top area? I like the chimney idea but the are tooooo small. First 2 painting has muddy color. See the master copy you did above> the first one? or 2nd one? apply that to the 2nd painting you have above. It will look so much better if you use that complmentary orange yellow and blue than green and mutard yellow you have there. See there is no relationship bewteen those 2 colors. That is why color doesnt feel realistic enough.