Oh this is absolutely drenched in moodiness, I dig it. The Mansion kept me guessing as to where it was going - I was never quite sure what to feel, and that ambiguousness was perfect. Takes more of a standard approach in the second track, where I found the lead to be surprising but ultimately fitting. Good choice of voicing for it, and the background ambience that persists throughout is wonderfully sodden with mystique.
I think of the bunch, The Lake is my favorite - gorgeous progression and articulation. Honorary shout-out to The End for revisiting these themes, too. Can't beat a great piano line to really set the stage and get lost in in. Great work, this is one of the more thought-out submissions I've heard. Best of luck! :)