Good work, but if you used the tutorial be sure to give it credit.

Now, this is a cool way of making lights, but really, you could've done it on something more complex, not just a wall....

Good work, but Ponti5 is right, you should link the tutorial. Good luck.

Nice job! Would have been a bit more exciting if you had something in front of the wall/curtain receiving the lighting.

This image and idea have a grat potential, but the quality is to bad, and I'd add a background too. =) Try taking a photo with a better camera if you have one, or download an image like that. Also, pose the arm in front of something.... interesting, so that you don't have to exclude the background. Just a friendly advice, since this is really good idea. =)

Pretty cool, it feels unreal and a bit cartoonish. Keep up the good work! Good job!