I was trying a few different ideas in this piece. A stock which I rendered, a stain glass window stock, and text (which I suck at) I don't hate the outcome but I feel I ether messed something up or its missing something.
she doesn't really fit in to the rewst of the signature. she kinda looks like you just put her face in a layer and forgot about it. i suggest you lightly smudge the edges of your focal and play around with photo filters/gradient maps in order to make the focal blend in a bit more. the doesn't really fit in either, it looks slightly pixelized and that cyan color looks kinda funny. the BG is pretty sweet. i think you're right, something is missing, but i can't quite tell what. it would probably look nicer with a bit of contrast.
the girl looks pretty tacked on, and the text is hard to read, try flipping the colors of the text. ("keep life" that blue and visa versa) if that still is hard to read take the red from the left side of the girl and use that. they'll compliment nicely then.