Critique

This is a very nice blend/poster<3 Technical things like blending is done well,
so I won't go into depth about it. (There is this one spot on the girl's leg that looks
splotchy like a cow patch though). The compostion is simple an that is fine.
The extra affects like the stars and candles are a nice touch to bring out the magical mood.
I like the font choices. I think the text could be clearer though, like the extra 
brush/textures/stocks you can see going through it could be cleaned up a bit,
it would make the text easier to read. Again, the thing that could be improved the most
is adding more things to make a story. Right now if there was no text, I wouldn't
be able to tell the theme/mood. Try to add relevant stocks/textures in an interesting way
possibly to interact with the models. Perhaps having the models sit/lean/hold stocks.
Another minor thing is the girl looks like she had topaz on her while the guy does not.
Try to find high quality images (not edited from tumblr). 
Thank you for the entry!

Edit
I want to expand on the concept of interaction with text, stocks and textures, by showing some examples:

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