So, I really enjoyed what you have so far. When I first started playing things seemed a wee bit clunky, but that's nothing out of the ordinary for an early alpha! As I played more, and picked up a little bit of the story I started getting sucked into the world more and more, and also started noticing how gorgeous the scenery and backgrounds are in the game.
I encountered a couple of bugs, like when I walked right into the ramp near the beginning and then when I managed to get stuck in a rock (classic Mikey, breaking the game!), but on the whole everything ran pretty darn well!
The language I found to be very intriguing. To me it came across as Scottish-esque (I'm nigh-on Scottish myself too), but your write-up about it really was interesting!
I didn't quite make it to the end of the demo though, I think I played myself to death trying to get past everything, but I'm really looking forward to seeing more of this! Keep up the great work =)