So I tried the demo, movement is smooth and I got to the 2nd quest (the towers) before I couldn't proceed. From what I can tell mechanics seem to be some 3.x variant.
More control explanation: it took me a while to figure out typing 1-4 selected characters and double tapping the same key to bring up status screen. I did not figure out how to fight at all and was unable to get though the 2nd quest because of it.
Character creation: fun races but it's very easy to get the maximum of 40 in both green stats by reducing red skills to a 5 and 6 and presto enough points to max both green stats. I suspect +15 might be unbalanced as weapons seem to do 1-10ish.
On a personal note I think no required skill should be restricted to a single class to allow more party options. For example a thief is the only option for traps and cleric for healing. This limits party design a lot. I'm guessing soldier's plate mail and mage's damage magic are not critical to party design.
Thank you for the hard work it looks lovely and shows the love and care.