so i'm drawing using a mouse... yup i said mouse and it's killing my hand!!! but i like drawing and right now i am broke so i want your opinion on how much tu i can get by drawing for people.... 

tle="Caliego by Alya N, on Flickr">

this is a sample of something i drew, so what do you think?

it's quite good for being drawn with a mouse =D

Some tips:

Don't save as a JPEG. It will kill the quality of your picture adding some awful pixels here and there that will make the pic look dirty. Your best option is PNG.

Avoid having a lot of unused space in the pic. Using MSPaint you can easily crop the picture and get rid of that huge black unimportant space. That will help draw the attention to the actual figure of the pic :3

Awsome billa!

Can you draw a veram for  me?

i just need an black veram..

how much do you take?

example of a tesuri... don't think its good though...

tle="Tesuri by Alya N, on Flickr">

You do very well for having drawn those with a mouse. :3

Aside from what Makah already said, I think you should definitely try to work on proportions.
For example, on the first picture, the head seems much too large compared to the rest of the body. It sticks out a bit far off of the neck, you know?
On the Tesuri picture, there's something about those legs... I think the left legs are sort of chubby, haha.
Wait, I noticed what it was that was throwing me off. The back left leg is shorter than the back right leg. xD

But anyway, yeah. Really good job! ((:
I'm sure people will want your art. I'm not good at pricing though, but good luck! <3

Since you're using a mouse, it's very difficult to get the what you want on the canvas xD

And since anatomy seemed to be one of the biggest issues here, I suppose you should plan your drawing carefully first, like how you would use guidelines (which you SHOULD use when you're starting off, even with pencil). I'd use the circle and line tools on MS paint if I were you. I like to draw just the head's guidelines (because I'm lazy xD). But when I started using guidelines I did guidelines for the head, ribcage, spinal cord, legs and pelvis. Now as an example, I'm going to draw an angry dragon without the use of my tablet (and thus the use of my touchpad xD).

STEP ONE:

http://i246.photobucket.com/albums/gg100/HappyVeggies/asjdkas.png

Then I start drawing all over it and making sure it's what I want (using the brush tool). As you can se, I forgot about the hind legs and added them in xD

http://i246.photobucket.com/albums/gg100/HappyVeggies/hjshdajsk.png

OMG IT'S DONE :D

But to really improve your drawings on computer you should really improve your visualisation skills, so practice tons with pencil! You'd have a better advantage because the mouse won't spoil your day. ;o

thanks for the bump lil' sis !