Some updated pics.

[flukekiller]

would these guys be considered light base marbles?

 

[stingray keeper]

They're a top quality marble imo. Light sand is a must if you don't want them to wash out

 

[flukekiller]

Thanks,, i was going to use white sand but i settled for pool filter sand as i did not want to spend the money on aquarium specific sand

 

[BlackDiamondAro]

Lovely marbles!