alright then, sorry bout that didnt know :D I'll reupload then.
btw if I zoom in, it looks all blurry. Not quite as it should :( is there a way to fix this?

Yes, if you look through the PJ gallery, you'll find a lot of stuff that's really low-res but still posted in x1. The upscaling looks really good, but it's generally not done on this site except in preview icons.

Oh, well. That's actually how the game looks. It's scaled up 4x, so 160x120 running in a 640x480 window. Should i post a scaled down version then?

When you submit art, it's a really good idea to post it in 1x zoom. If they want, people can zoom in and out themselves with the buttons or a Chrome extension like Pixezoom.