1. surreal photo manipulation.
The girls is looking at what and so what?
Shes basically looing at a void in the clouds.
My suggestion. Make the cloud a form of a face.

2.drama in Venice.
So you slapped in the clouds and added lights to the lantern. I could have done that in PC PAINT!
I would have edited out all the people and ALL the boats. pasted in something dramatic in the river. King neptune?

3. waterman.
I would add more splash efx at the hands maybe had him hold a broken glass with water spilling out.

4. Urban city montage.
Wrong mixture of images pasted together.

5. scared photo manipulation.
It speaks for itself. Well done maybe add some sweat to forehead.

6. Mysterious Hollow.
Not enough skeletons and bones. Add another dog
Could have added more stumped trees in the background

7. sichuan earthquake.
Why is that boy looking into the umbrella?
Clue me in will ya?

8. gift for tomorrow.
Obviously the balance factor is way off unless the world is made of styrofoam.

9. snail race photo montage.
Wrong background. The disconnect of the two images does not entice the viewer into thinking the street goes to almost infinity.
To improve. Add a 18 wheeler coming up on the snails

10. the making of mystic.
Very intricate render. The only thing is that you forgot to make the EYES the focal point. The EYES are emotion. Use them to impact the render and your viewer. This guy may as well go to sleep as it stands now.

11. epic fantasy.
OBVIOUSLY the wings are too undersized and positioned way too forward. It was merely a slam dunk and not too much thought given.
I would have positioned the rider further back
AND greatly enlarged the wings. Fantasy or not…proportionality folks

12. fiery demon montage.
just a lesson on fireball application

13. dark surreal montage.
I dunno…im lost…lol

14. fantasy photo manipulation
I dunno is she looking at the light globe or the tree branches? No central target to cement what the heck shes smiling about. Thi sattemp was lost because the artist did not follow thru to a conclusion.

15 dramatic winged dragon.
Good image except it would have been better if the dragon had his/her EYES on YOU and you knew it.

16 alien invasion.
After independence day art like this is so blasse

17 dragons attack.
Looks like its ROBOCOPS OCP urban pacification robot taking on the dragons. Hopeless….

18 children accident montage.
Is that melted gummi bears? what does this mean?

19. under human skin.
why is the light not high lighting the face at that angle? Forget the body high light the face to focus your image more tightly. make him look terrified or sad – you choose.

20. 3d image montage.
Boring…anyone can slap in three four 3d objects render them and slam dunk them into a background. Thats how I sell my objects on turbosquid!

I to have been a digital artist and have been doing it from the mid 80′s on the PC, MAC and Amiga. I ran a BBS service which had image files from all over the world.
The main lesson here is NOT to fall in love with the tools because its there. Ask yourself what does my imagination tell me to do. Sometimes using tools adds stimulus to your images but don’t get carried away. There is a point also of over saturation and you cannot control when enough is enough. Step back and look. get another opinion.
You may not LIKE what they say. But no matter how its done the time honored practices always ring true. Your imagination is the key to getting it right provided you have the right qualifiers to rivet your viewer and impact them into a smile.