Any digital picture is composed of pixels. That's not a good excuse. PJ is not an automatic system that checks each uploaded file, so if you don't receive a message could be because the people (users of PJ like me or you) who agreed about your submission, didn't took care about the resizing rule.
From what I know, Pixel Art is an art method based on pixels, re-sized pixels, are still pixels, also, PJ sends messages to their members in case their pieces of work are violating any type of rule, I have yet to receive a message from them. Also, I re-sized it to make sure every detail was noticeable since it's only in black and white.
They look fine buuuut... Resized art is not pixel art.
If you want this is accepted, u must submit the original drawing, 1X size.
There you go.