I like the idea for the image, and i think you have accomplished it quite well. Only a few things to point out as far as inserted objects go. The blue butterfly could use some better masking, very hard lines around it. also the bird added in near the tree is translucent, i can see the flowers be hand it, through it's body... also some of the added items to the girl, look very flat. I believe this is due to the lack of proper shadows from the objects in relation to her body. Great work over all! Feel free to PM me if you would like a few tips on seamlessly blending objects.

First, sorry for my English.
I appreciate your comments, I'll send a private message

You're missing a lot of shadows and lightings, most objects in your scene have intensely light with no shadows. Plus the background lgiht sources comes from behind.

Thank you very much for your feedback Akassa. Criticism of this kind help me to improve. I will try to improve the drawing.

I made some changes in light and shadow. Personally I like it better now. Thank you very much for your advice.

some definite improvements. keep practicing!

Beautiful result. Nice blendings... gl author.

Looks like a galaxy in some way :P

Thank you Akassa and George

Beautiful colors and delicate effect. Nice job!

Is "delicate" a euphemism for bland? I think a touch more saturation would add impact.

Nope, "delicate" means not heavy handed with oversaturated colors. "Pastel" might be a euphenism...
I like the fact that this allows the "sketch" effect to show through with just enough color for a bit of contrast and interest.
~M

Better for sure!

Try to use Channels to cut out the fire:
Select the picture layer of the fire, and click channels ( if it's not active near the layer tab , go to Window -channels)
Choose the channel with most contrast and use select color range to select the fire. Use the fuziness bar to adjust the selection. after you click ok and have the selection press Ctrl J to make a new layer out of the selection. Try it multiple times until you like what you get.

Selectiv via channel gives you a more transparent look which blends better in background.

Thank you so much.