Just to add my 2 cents worth, the game is awesome, the story well thought of, i just have to mention 2 aspects that I didnt like and that i thought i should bring to your attention.
First of all, why didnt you make the inventory items combinable in both ways (example. combine coins with glue doesnt work, but glue with coins does, why?)
And second, when you pull an item out of your inventory and use it in the wrong way it disappears (the icon of the item) and you have to go and get it from the inv again and use it again, i think of this as bad cause if youre stuck in an adventure game, you usually try every item with anything you can think off, which in this case takes a lot of time cause you have to bring the item back out all the time.
Otherwise a great game and a marvelous addition to AGS games.