I love this film, so I can say this is very readable, the characters i mean.

 Never seen the movie, but I could still recognize the characters. Great job.

I loved that movie!

Yeah, this is nice! Definitely have a background for it.

This is nicely done. They are readable despite the small size and have good detail.

If I would crit something it is that this would actually benefit from having a background colour other than the PJ one.
The default PJ grey has a very close value to the logo, which makes it a bit hard to read at a glance also, some colours on the characters blend into it as well.

I would probably give them some simple street ground to stand on and then have the back be some lightish grey colour, perhaps 2 or 3 greys with some blending and such to make it look a bit dirty.

Very cool sprites! 

 Soooo cool.