Hmmm...
First off, without knowing the purpose (assignment?) of this piece, it's really hard to know what to do with it.
I question the choices you've made to illustrate each "stage" of development. I understand the "drink" and "transportation" model, but these things seem completely arbitrary. Why these two and not some other two things? What significance do they play? Also regarding this, I'd say that the motorcycle is quite out of place. I'd be more inclined to go with a bicycle.
The MTV logo doesn't really make much sense either. You have three human images for the other stages, and then a corporate logo for one stage. I'm not sure if this is some commentary on that stage of life itself, but it doesn't stand out as such. It just makes me question it. If you're going to make something stand out, make it stand out enough so that the reader knows it's purposeful.
The time on the clock seems arbitrary as well, and not really related to what is going on with the rest of the piece. 9 o'clock suggests, to me, that the "person" is 3/4 the way through their development. If this is consistent with what is supposed to be going on, I wonder if the last stage of development might better be left blank...or fuzzy...or masked in some way, showing that we don't yet know what is in store during that stage, because we haven't been there, yet.
It seems the whole piece could be a little better thought out, in my opinion. However, I will say that I like the color scheme you've chosen, and I also think that the broken, open-ended images can be a good start. I'd continue this "theme" throughout the work, making the background and text look the same way (i.e. not so "finished" and "polished").
That's all I've got for now. Hope I've helped.