'Owl Encounter' is my absolute favourite of the three. The tremolo on the strings creates the perfect sense of dread, and then turning the whole tone of the composition around in such an abrupt way totally works.
'By the windows' just *sounds* like a title theme, I can see the menu and everything in my head.
I really like the synth in 'Monster Machine', it adds such a sense of tension and urgency, total boss battle vibes.
Really not a bad thing to say about any of these, *this* is the level of composition and mixing I aspire to.