This is very cool and it looks very good. I can tell a lot of work and detail went into the artwork of the game. And it is a fairly hard (until you figure out good strategy) turn-based RPG.
It's of course not entirely finished or a preview, at least in that I never got to a point where you could item-craft and the random items you are awarded in-game seem to have no way to use them, unless I'm mistaken. This is fine because you don't need them to beat the game, but can be a little confusing as to why it's there at all if you can't use them.
One small gripe is the "skip" button should actually skip the entire cutscenes and straight into the action battles. Instead it does no different than had you pressed spacebar one time. So once you've seen the story, you'll just have to spam that spacebar on subsequent playthroughs.
For people having troubles with the medals in this one, first beat the game on your chosen difficulty, watch the ending let it get back to the title screen. Then reload the page in your browser and when it reloads, it should then give you your missing medals. Otherwise you won't get medals.