the idea was to have a connectione between the alien and the world of human. The jellyfish operate like mushroom or spore and than give the energy (the blue laser that go up to the sky) to the mother ship
I really like how you've used perspective to impart a sense of environment and narrative in this piece. In general your perspective is spot on, so well done on that! I think the comment below says it : "holy shnikeys there's a lot going on"; but I think in this case it's probably too much. I actually would say that the use of blue is quite overwhelming without a counterpoint and there isn't a lot of difference in value across the piece, which actually makes it more difficult to separate out the various elements in there from others. A good way of testing this is looking at your piece in thumbnail form to see if the image and the shapes still read?
I also have to say that as a vehicle concept piece, the emphasis here is less on the vehicles and more on the scene or environment. I know it was probably tons of fun to do and you did quite well in achieving that. As a vehicle concept you shouldn't get side tracked from making this the focus of your work if that is the aim.
thank you for your comment! i think you are right about the value! I think i was too concentrate on the aspect or composition that i forgot some important base as value!about the blue i had a final filter on in the previous stemp was more close to gray!