Nemix, your isn't really pixelated, more like..the standard ESF logo with a grid on top of it. Thus, in one 'pixel' of grid, there are more than one color. What you need to do to pixelate something, shrink it first (so you will lose a lot of pixels), then enlarge the crap out of (so the pixels are visible to the naked eye). Be sure to upsize it without a bicubic smoother, or else you will get gradients, and you don't want that.
The following picture is 100x33 pixels, enlarged. So you have fun painting it.
I couldn't be arsed to delete the extra stuff around it though.
What do you expect, the image is 100x33 pixels large. Cut of the corners a bit and it will still leave you with like a 80x27 pixel large image. That's gonna be 2160 boxes. I could make the image smaller, but that would degrade the quality of the logo too much, and you will not be able to distinguish some parts properly in the logo.