Cool!
I really like the animation, especially the way each character has a different rythm and style. The background's sketchyness is quite nice, i think it help set it apart from the foreground without grabbing too much attention thanks to the reduced contrast .

I played Meteor busters (to the very end) and had a great time . The sprites, backgrounds and effects are very well done, and the gameplay is fun in a nostalgic yet refreshing way . Are you doing the actionscript as well ?

Looks cool.  I think the wrist needs to be more defined, and the hand could be slightly larger. Also, the ear should probably be a bit higher on the head, and the eye lower. Don't be afraid to put light shades right next to your outlines, it seems like you're overdoing the antialiasing in some places (the legs, for example) making it appear a bit mushy and lacking form.
good job, I'd love to see it animated.

Thanks Helm,
I'm glad you picked the coloring of the collarbones as an example, it Does look great yet to me it's not what i'd call intuitive coloring.
I remember Craig Mullins (goodbrush.com) once said in a forum post that you can generally go crazy with your hues, as long as you get the values right.

If i may continue my interrogation , i'm also curious about the greenish tints in the skin ramps - the blue tints makes sense to me because of the suggested blue atmosphere , but the greens don't( by mere intuition , it's all super-sweet to my eyes  ).

This is really amazing. i love every bit of it, but especially the atmospheric tinting on the hair on the right. cool stuff.

Do you have an online gallery somewhere with more of these ?

I'd also appreciate it if you could share some tips about the way you use color and tinting in the early stages of your work- i'm interested in the decision making process- is it something that you're constantly aware of and can put into words or do you find yourself making most of those choices automatically ?

Try to think of the shape of the 3d objects that you're shading rather than following the 2d outlines,( Imagine the legs or arms as cylinders, for example)  and once you choose your light source go ahead and shade them accordingly. Don't bother adding too much detail or finishing it with Antialiasing at this stage, but rather try and make the lighting consistent and the shapes clearly readable.
As to the outlines- personally I'd choose colored outlines over black ones almost any time, it adds a certain vividness (is that a word?) and freshness , and it can also be shaded to enhance volume.