I will vote for 2nd outcome for several reasons. I chose the simplicity of this signature, while the other two signatures are disturbing to me because of the lack of knowledge to using resources in "harmony" and, of course, lack of awareness of the stop point (say so, too much contrast and luminosity, but also the lack of a appropriate light sources). The others two works respects the basic rules i see. I like the colors, but the text distracts a lot from the work itself. All in all, there are not very bad works, but they are evidence of limitations of imagination and resources, maybe .
Much work ^^