Yes, once scouted, your work will show on the main page of the Art Portal. :)
This is good. The perspective is good. It looks like I can walk down the hall. One thing I'd suggest is to moderate your size. Most people's monitors can't display this at full size. This is actually so large, it's slowing my computer, with all the other animated stuff going on aroung the Newgrounds screen, anyway. Try to keep the size to 2000 pixels or less on the longest span. It'll still show up good in the smaller form, but it will also still look good when expanded to full size.