You're welcome!
Mod Podge is what I was thinking too. I like having the control it gives you from incremental applications. Id go with the Satin one, but definitely NOT the Glossy one. The glare is simply too distracting, specially when taking photos. Also, I'm not after wave effects, so this works for me.
However, if you are looking for wave texture, there are other options:
YouTube link
Of those options, I'd go with "the gloss gel medium from Reeves", which seems to be the same product as Liquitex, except I'd look for a Satin Version, if they have it. Matte would be too dull.
Dan
PS. In this video Terranscapes goes over a lot of things not to do. Silicon gel eventually peels off, for example. But what I did learn is to try whatever your final technique is, but on a separate piece first, before ever trying it on the actual terrain project.
YouTube link
