Nope. :)  I've made that primitive drawing circa 1987 (I was a very kid), pixel by pixel, using a software bundled with a MSX computer, "Philips MSX Designer". Some time ago, I extracted all graphics, which are -imho- proper pixel-art, using an emulator and keeping all original behavior and now I'm posting some of them here. (I'm doing new pixel art too, I'm not planning to post only old stuff, of course)
The link points to a site where I publish all my MSX stuff, including that, as you can see.

I don't understand, you made the picture in the link as well or you used it as a reference? Because this is exactly the same picture..

If it's yours, then the line art is very nice but the coloring is very simple. It needs more complex shading and more detail!

you traced a picture?