This was a fun listen! After reading the description I probably listened to them in the wrong order, but I still thought the songs had a nice progression to them. A Life Left Behind was slow and contemplative, A Wall Too Tall felt like a natural progression in intensity with the drums and upwards melodic movement, and What I Deserve felt like a nice combination of the two as if Isaac has found himself a new home and is reflecting on the lessons he's learned on his adventure.
Something I did notice, and I know this is difficult to give actionable criticism on, was that I didn't find myself following along much with the main melodies. I think improving on that mostly comes down to time and actively listening to as much music as possible, but one specific example I think where the melody loses its "train of thought" so to speak is around 0:46 of A Wall Too Tall. The melody feels like it's still going upwards and then quickly turns around to go back down and loop around which feels a bit awkward.
Overall though still really great stuff, and super impressive for the 48 hours we were given :)