The Moonlight gourami should be in a bigger tank IMO, since they get about 5 inches. It will be ok though. Clown loaches get far too big for your tank ). I'd wait until you have a tank big enough for a shoal of them (full grown they should be in a 5-6 foot tank. Chinese Algae Eaters get around 8 inches long and get more aggressive with age, so it will eventually need a bigger tank and tougher tank mates.
If you want loaches, I'd go with a group of Kuhli loaches or Dwarf Chain loaches. They stay small enough for your tank.
You could add a school of fish to the tank to finish off the stocking. To go on with your Asian theme, how about some Harlequin rasboras.
