Same as me.
For the bases just do what you have done with the sand and glue. You just need to be a bit more careful. Run you finger around the edge when you have just put on the sand to tidy it up. I paint mine with GW Graveyard earth, dry brush with GW Kaki and a final high light dry brush with GW bleached bone. I then glue on small patches of static grass or flock to break up the single colour.