Show your piece so i can tell you what's wrong with it.

The quality standards are quite simply what the mods think are good enough or not. There are also other things that will stop pieces from getting in the gallery, including silly backgrounds, general effort taken, non pixel art, rips... etc.

Show us please, you're being toooooo shy.

I'm going to be the first to take the step to tell you that that is quite sh*tty.

And here's why;
First off, the ground isn't in perspective to the peice.
It's just a flat 2d square with a lin through it.

Nothing at all is in the same perspective I might add.
It seems as though you've randomly thrown around triangles from a different angles.

Now, the color is too repetitive.
Try adding some contrast to your peices all that yellow burns my eyes.

You've also added pointless un-needed dithering on the cube.

You have no shadows.
And you don't have one consistant light source.

Is that a girl?
Why are her shoes black with grey outlines.
Lack of effort?

Also your colors need some saturation, seems you've just used one single yellow and changed the shade of it.
Try using more versitile colors, especially on the "girl's" hair.

We'll its great that you choose to make art rather than do other more self destructive things.

anyhoo, I think this may not have accepted for various reasons. There is very little colors variations and on such a big piece it looks boring. I think this size canvas is way to big for you to handle succesfully at the moment. Try something smaller and work your way up as you learn.

 

ACK! I was going for something surreal here but looks like I didn't capture that here. The reason why I only use one color is cuz there isn't suppose to be other colors used.

If it doesn't meet the quality standard then fine. I just hope my other stuff is acceptable.