Ok, legs are getting to be the right length in most cases, but now you're making them too fat! Go stand infront of a mirror with no pants on and do some leg studies, man! :p Your torsos are also getting too narrow at the top. Remember Loomis's 'cape'.
Those figures are quite good for being from life. And did you draw those robots yourself? I'm not quite sure what "New Media Colouring Book" is.