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First of all, let me say that for a first effort it's creative and and layout is good.
Otherwise, scour the net for blending methods. The biggest issue with this is that it looks like you cut a bunch of pictures out of a magazine and stuck them on with glue. Learn how layers go together and how you can make them blend seamlessly.
It's way nicer. Good job working it over. And you're brave to come and ask for critique, lol. Keep coming back. We love to watch the progression and learning.