I've gotta say that the first level 'ought to need some improvement. Perhaps considering replacing the low definition ground outside, the outside walls can have the player looking into the house though the large gaps near the top, and the grass and trees outside really bothered me; They had their original collision. So you should try to put some block boxes around the grass to make it easier to walk though or by. But of course this is a pre-alpha test map.
What I really liked was the idea to have development commentary and the voice-acted notes. The idea to have the inside connected to the outside was also a good idea.