Yeah these seem alright.
Dark blue jeans, grey shirts and weird dark grey spike hair (its not a mohawk is it?) is ultra boring.
Lets see some colour and personality.
You really need to move on now and design a character, hair style, apparel, weapons etc. that says something about the person.
I say do a 3 or 4 very different characters at once from your plot (you do have one right?) rather than going round and round forever on one sprite.
Just have a go and post it up, we'll see if we can get something more interesting happening than a overgrown baby