Our Time on the Skyway (Daytime): This track makes me think of something that might accompany someone skipping through a busy town excitedly. The bass ostinato feels like the waves on the sea and the castanets in the background feel like the pattering of many many feet along the cobblestone walkways. This is a singable and memorable melody which earns extra points in my opinion- nice work!
Our Time on the Skyway (Nighttime): This calm version of the previous theme has such peaceful instrumentation that evokes a sense of belonging and yearning at the same time. The image evoked in my mind is a calmer sea, a quiet marketplace, a bright moon in the sky, and a few people out for slow strolls through the gentle glow of candlelight in the nearby buildings.
Sailway Traffic in the Rain: The downward stepping bassline gives this a somber and reflective mood to it. The instrument playing the melody sounds a lot like one of my favorite default Logic instruments called Oak Piano Dream Synth - this one and yours have such a distant, round, and memory-like quality to it.
The Hill that Touches the Sky: The high soft piano here gives an uplifting and hopeful feeling. I like how it builds up and gives a solid conclusion to your soundtrack. Overall I really enjoyed listening to this. Great work and thank you for sharing!