I would fave this.
You are famous to me.
You keep improving all the time.

If you are ever craving...
Go with a dinosaur or dragon.
Heavy craving Mario riding dino/dragon.
Heavy duty craving...dither the dragon (aDDD)

As far as this sprite is concerned...

The anatomy looks solid in many places, but I note a few places where it looks off to me. In general I'd look at more reference anatomy (but then again I'm a little obsessed with anatomy...).

1. the armpits don't have those purple lumps that you have coming from the upper arms, if anything the core muscles come out in back to meet the arms supported by the scapula. And the medial bicep surface tends to be quite flat, everyone thinks it's curved because the bicep is curved.

2. You're seemingly defaulting to circle-knee. How do knees really look?

3. Your upper thighs are uniformly wide and seat into the knee at the same height. The medial upper thigh muscles seat lower on the knee than the proximal ones, creating an interesting set of shapes. Your medial thigh muscles are extremely high seating. :b

4. The ankles and feet and toes seem a bit unsure. I think for one you're overexaggerating the bone protrusion. You might also be putting too much detail into the small toes and not enough into the large one? I dunno, this part could probably just be your "style".

5. The deep groove you've got in those stomach muscles makes them look odd. Maybe it's something you're going for, but feels wrong.

6. Also your face feels more cartoony and flat than your body.

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I think you're well on your way to your own "style" and your stuff looks solid. I don't know what it is about the new forum I can't access people's galleries directly anymore?

"so good that I can join the ranks of other famous artists who just post one sprite and get more than 20 favs"

Well I think a lot of those folks have been pixeling for many years.

I decided to move over to create a pixel-only account on Deviant Art, where I think a lot of people go to find artists. And I've joined a bunch of DA and Facebook groups for pixel art. I think if you want to be very involved and improve and collaborate that's the way to go. Many of these more 'famous' artists I think have several media presences.

If someone knows how to be famous and break into the games industry please tell me. I've graduated from probably the best video game school there is in DigiPen, taught by some industry legends like Tony White, then took a ZBrush course from Arenanet's FuturePoly school. I've worked in 3D, Flash and Photoshop for a good 9 years combined and still struggle to find a place in the industry.

I've seen a lot of people trying to make art for games at least and it's not easy. Pixel art is probably easier to get into with less technical hurdles, but that also means a bigger group of people trying to do it well. And games that people might have paid $50 for 20 years ago people now want as Free to play. Games are extremely devalued in this regard.