Techno is an old character from the sonic world who hasn't made an appearance in a decade or so..
she is supposed to be a canary (though when i was young i always thought she was a duck..)
she was basically a techy engineer character before tails suddenly became the tech expert..
http://stc.wikia.com/wiki/Tekno_the_Canaryi had to change her blue skirt to black leggings in order to squeeze her into the colour pallette
so tweaked her shading a little bit to try and improve the her top and lessen some of that staircase banding you pointed out..
also moved her leg back a little.
for her idle animation ..after she looks at the screen i was thinking of making her pull out some kind of scanner/ hand held device for a bit.. but i want to get the head turn animation right first
in sonic's sprites the head turn animation is also used in the run animation, something to do with the way the old sonic games saved on sprite space, by reusing sections of an animations frame as much as possible..