[halp] I'm stuck so..

[Azuki]

Need help, after doing the lightings and such I think there's something missing.
Is it too bright? or the render doesn't go with the background?
don't know anything to add in this ;_;
tbh this is not my style, i'm trying other styles so this is the effect of that so.. Q_Q



Edit: will edit this thing after a day. thanks to George-san and Epic-san for the help.

[Mike]

Is it me or is the quality just terrible?

[Jonathan pls]

The green background and the green clothing the dude has just doesn´t go together

[GeorgeGFX]

You picked that background just because the bow has the same curves but it doesn't blend that well with the render.
Your render isn't placed well, check a tutorial about The Rule of Thirds to get the idea.
You need some nice blending over there.
Check the colors of the render, pick backgrounds that would fit and/or change their color to match with the render but don't forget to make everything blend.
The lightnings are a bit off, try to read tutorials regarding Dodge/Burn Tool so you can get the idea as well.
Try adding some bubbles perhaps.
Overall 5/10

[Azuki]

I'm just kinda practicing btw. XD
this is not my style usually.

You picked that background just because the bow has the same curves but it doesn't blend that well with the render.
Your render isn't placed well, check a tutorial about The Rule of Thirds to get the idea.
You need some nice blending over there.
Check the colors of the render, pick backgrounds that would fit and/or change their color to match with the render but don't forget to make everything blend.
The lightnings are a bit off, try to read tutorials regarding Dodge/Burn Tool so you can get the idea as well.
Try adding some bubbles perhaps.
Overall 5/10

Okay. thank you. well tbh this is not my usual style, i'm just practicing a new style though.

[EpicKLF]

One tip to give more focus and contrast is to make the corners dark with the brush tool and blur them as well. also, the colours seem a little flat, try and add more colours in it too. focus and depth is what is missing in this.

[Azuki]

One tip to give more focus and contrast is to make the corners dark with the brush tool and blur them as well. also, the colours seem a little flat, try and add more colours in it too. focus and depth is what is missing in this.

Thanks. I will.

[Lemonish]

As others mentioned, the background doesn't fit in with the render, If I were you I would go for both of green and blue, because they're both popping out in the render.
I would also darken the edges and sharpen the render. Add some lights(like bubbles or anything else) and adjustments.