First Impressions: [8/10]
at first glance what i thought (sometimes unedited thoughts
and how my mind works when i first look)
i like it :) lol sorry theres nothing else that
particularily strikes me as first impressions go.
so on with the rest of the review.
 

Technique: [19/20]
how masterful are you at blending/cutting
blending is great. between both guys
theres no random arm or leg sticking out or cut offs.
the blending could be a weeeee bit better
where yunho and the flower stock meet though.
just a little smoother would have been nice to see.
but i know how hard it is since his shirt is so dark.
If you used layer mask to blend
(which is the mehod i personally love to use)
or brushed some white spots of top
a slight gaussian blur would have helped.

 

Resources: [14/20]
does your images/stocks/brushes/textures enhance the poster
i like that you used textures and stocks. the textures and stocks you chose do look nice how they are. 
and they used well but relating this to theme/mood i think your choice in resources could be improved.
for instance, right now i can't tell what this piece is suppose to be.
if i didnt read any text, i would think its happy because the colors are sort of cheerful.
if i read the title i sort of think its sad.
if i read the subtext I think its hopeful/nostalgic.
your choice in resources can help define the mood and message better.
even if this isnt a story, i think art in general should have a story or make the viewer feel something.
ill explain some more in the mood section.
the piece looks over sharpened to me, with makes it seem like the quality of the textures/images you chose were low, 
and might bring down the piece a bit. so be careful of over sharpening.
 

Composition: [19/20]

did you create an eye catching and balanced piece
how well does your piece "flow"
the main composition of the piece is simple and
easy to understand (which is not a b