How do these characters look/how is my anatomy?

I think all your drawings are basically rubbish

Well, it's awful blurry, and when I click on it it's made even smaller.

Arms aren't tubes, they have shape to them. Elbows come down to almost the point of the hip (check it on yourself. That first one has no rib cage. There is a bone structure inside every body.

You're getting better, but still missing out on obvious things. Here, try this. Go over to Facebook and look up an account called Cartoon Block, that guy has absolutely excellent lessons on how to draw people that look like actual people. He shows muscle structure, how a hand is put together, how a joint bends. His site is one of the best I've found online.

And FYI, don't do the amateur thing of making every woman/girl have huge boobs, you're not only drawing those wrong, they look like balloons stuck to the chest. #1, they're rarely that large and would need support to be in anywhere close to the position you're drawing them in. #2 they don't 'hang' that way either. In three of those pictures it looks like you're drawing a butt on their chest.

Too blurred, dark and low res to give any specific advice.

There are some very skinny and long abdomens, enormous breasts and varying lengths of arm.

And none of them have feet.

The arms seem to be particularly horrible. They're out of proportion and oddly jointed.