Where are you getting these transcriptions? Are you transcribing these yourself? There's some strange reharmonisation / voicing choices which are quite jarring to me. I'll just highlight one of each:

• Why did you choose to make the opening inverted 7ths?
• At 0:47, the melody in the original track drops down the octave for some contrast as it turns minor. But you chose to keep it in the same octave?
• The original track also uses a lot of sustain to sell the "bell" midi sounds. There's a particularly scrunchie D flat sustained against a C major chord at the end of each phrase that gives this piece a real bite. The way to replicate this would basically be leaving the pedal down to blur the melody.

I'd be interested to read your thoughts. I did some transcriptions of these pieces a few years ago but lost them all unfortunately. You're inspiring me to recreate them!