It seems I've officially joined only a few weeks after you did. I can't seem to remember a time when there wasn't a public cue.

 before it was impossible to watch unapproved pics

anbody can see things waiting approval by going to the public queue.  If you are atleast level 2 you can vote to get things approved.  Not sure how that works exactly though since Im level 1.

Thanks for comment, I'll try to do it.

How you can see this picture? it is awaiting approval

these look good.  I would suggest a slight difference in hue between the ground and walls.  And perhaps a shadow cast onto the ground.  You might also try some hue shifting as its pretty monochromatic right now.