the skectch looks fine, but I think you could have some high quality images that people want to comment on simply by using your space better. Fill up your compostion, use crisp colors, and have your people doing something. Even when you're practicing and not that good yet you can be using simple things like that to make nicer pictures. Check out this draw to see how your effort can be put to good use:
http://cellosoft.com/2draw/view/17088/

good choice of image Dino lol (specially since the safety bar is there now)

holy bleeping christ, if i could make a background that good! I lovin' the clouds. *noddles* ^^

Good job! I love the way you did the mountains.

thanks...I liked the way the clouds came out on the mountains.. did that with a broad airbrush starting with a grayish white set to really thin opacity and then gradually increased the whiteness and reduced the brush size with increasing opacity then a few tweaks with the dodge and burn... seemed to work...

Knock Knock! Police! Open up! Now it's not lonely anymore. Crack houses usually arent. (lol) I like this... it conveys a sort of sad feeling.

this is different for you.. I like it very much! Sometimes on vacation trips I take photos of nothing but doors.. they are very interesting if you take the time to look.. this is cool

This really kewl, i was trying to C on it before but internet connect didnt like at that moment and died, it does that. i luf the way you actually made it look like a real scenery, on a freakin applet. Its just real niiice.

..... nice looks good, your getting better at this :)

^^;;.Marcello, the only drawings I copy off other peoples' drawings are FF characters^^;.Other than that, they're photos and originals.Photos aren't drawings^^;.I dunno whether you're trying to insult me here, but yeah.I would draw more orignals, but the problem is when I do, they're usually all black and white(done with pencil), so I rarely do them online.Offline, it's almost a shift in the universe, mostly originals, rarely copies.I just thought I'd clear that up for ya.;)

DieChan: lol, you didn't rip me off, nor would I care if you did XD(mostly considering that I don't do anime).Anyways, I thought this was nicely done^^.As Wasil said too, nice coloring.

I really like this oekaki!! Your coloring looks as if it works cause its all nice and smooth. ^^ hn, his expression awlfully reminds me of Heero Yuy ne, to spooky. ;p

Oh, me to cute. I love the pastel colors! He has that all innocent angel thing going on which = Quatre! .... *Ahem* I mean .... >.> .... <.< ... Hes kawaii. ^^

im just trying to sleep

ya, kawaii chibi-ness!

but this is good.. it looks like a big pearl!

Yes, it does look like a pearl, a big Tahitian! *Grabs pearl and runs away* Seriously, I'm feelin' ya too, browse alot and someone else will inspire you. If that doesn't work, stop trying so hard. It's a natural talent and a feeling you get, you can't force it. This drawing is totally with it, tho, so it can't be too bad of a block!

whoo, shiny. I love the color it, its really amazing you could so that with an applet. *noodles*

thanx 4 the comments

This is really interesting, has great texture, has depth, and the colors you chose give a cold eerie feeling. Stick around and draw some more!

whoo, spooky! Like how the colors contrast like blurred street lights.

kOleRiNg!
err.. er. eh...
*sighs*

Wow! ^_^ You did a great job on the hair! ^_^

whoo, this should be an interesting picture, i really like the pose. Poor guy. ^^