hello again!
this time process in pictures :}
first - sketch as always...

then - lines. this time I didn't do separate layer for line, just 'cleared' sketch

then added some basic flat colors using reference pic

+lights

... and then I moved to Photoshop where I adjusted colors a little and added shadows and rimlight

final touches - effects. here I used "color halftone' filter. here are my settings for this piece

and voila!

hi-res pic is HERE
(attachements don't work today I dunno =_=' )
hope you enjoy!