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Hi Jonathan,
I like your color choices here.
I like the first one the best because It has a more stable feel. Which in turn compliments the message that you are trying to send. That what the words offer is stability for the depression. I also like the first one better so, i don't need to turn my head to read it (which can get tiring and I may lose where I am reading easier that way as well.)
I feel this may be a great opportunity to add more descriptive words, rather than repeating only a few behind the girl. In turn it will help you reach a few more people who may describe their depression in a different way.
Last, for the first poster your text blocks feel a bit too far to the right edge. I mainly say this after looking at how close the "I" in "Is" is to the left edge and how close the website listing is to the bottom edge. Maybe also, just a bit more space between the two paragraphs, It's so close, I almost want to read the top two lines as one long line.

Since you said you really would like the phone number to reach out. Have you tried placing it in the top left corner of your first poster? So, that will be one of the first things the teen will read, reach, and possibly remember. Rather than having them read all the text before hitting the phone number.
Or maybe adding it among the faded words behind the girl?