Okay, first things first.
One: The sprite was made from scratch (except for the colors).
Two: It was based on the Metroid Zero Mission beta sprite.
Three: Animation is in development. . . . What?
Four: I can't say it's great, but I tried.

It has the normal turned to the screen pose, and facing right pose. One with different, more sensible colors is on the far right.
Anyway, it is a re-creation of the NES Samus.
Tell me what you think (Note: The visor will not be changed unless given a different stlye).

Very boxy... maybe overly so. But I think the jetpack (side-view) is too noticeable, since at first glance it looks like an arm to me.

too small too boxy too colorful.

Yes, the third sprite has too many colors: You only EVER in an NES-style sprite should have 4 colors, one of them HAS to be black.

Update:
#1: Gray removed and replaced with black. There are now only four colors.
#2: Made a little less "boxy."
#3: Alternate palette removed.
And too small? It's as tall as Zero Mission Samus.

the lack of grey makes it easier on the eyes.
I don't know why.

Gray is spelled with an a

Depends on which country you're from.

And make sure it fits the sprite box sizes common in an NES sprite. (16x16 tiles, 2 tiles for Samus)

. . .
Are you saying I should make it shorter?
When I said I was remaking the sprite, I mean I'm going to make more fitting with recent sprites, but still making it feel like a NES sprite.
But, I'll see if I like it smaller, or if anyone else likes it that way.

I'm actually not sure how I usually spell grey or gray... I think I spell it grey...

Well, just compare it to the original Samus sprites. Then you can choose what direction you want to go with it.

well, I guess I'll just keep as tall as it is now.
Also, I have a walk cycle done, now I just need to make the arm cycle.

Reminds me a bit of this design:



I believe the original Samus was... what? 32 pixels tall?

*checks my lego statue of Samus*

Yup. 32 pixels tall. Three colors and one transparent which ended up looking like black since the backgrounds in M1 were all black.

I think they look fine, better than i would do, but then again, my first sprite looked like a blob.

Kuro... Thanks again for reminding me. *downloads all of Kuro's Samus pics*

lol
Anyway, the arm cycle is still messy. I'll edit this post with an update later.

Hehe. Thanks, Miles.

As for the format, just go with what you want for size, but don't forget to be consistent. Stick with what you want to do and it should work out well in the long run.

These are officialy apart of NES Reborn, a sprite project.
The logo is my avatar for now. Wait, hasn't switched yet.
Until it switches, this is the logo: