Welcome to TFK! I can't wait to see your setup, it sounds pretty with the natural theme - can't wait for pics! I have a 55g tank that I keep crypts anubias, and moss in, they thrive under my low light, Tiger lotus are beautiful too - and hopefully you'll have better luck with Vals than I have - they didn't do so well in my soft water. :(
I'm not terribly familiar with all the species in this tank, but as the PP mentioned to watch out for the clown loaches, I thought I should mention that these guys grow very large, and need to be kept in groups to thrive. It is suggested that at a minimum they be housed in a 75g tank. :( There are many, many types of loaches that are smaller, and will do well in a tank the size of yours - I have Kuhlii Loaches, and they're adorable, if you'd be interested in looking into those, or other loaches that don't get *quite* as big.