To a certain degree though, the instrumental of "Walk" shows some acoustical features that are characteristic for Ayu's winter ballads, especially those bell-like or maybe snow-trickling-like sounds. I also think the song might be a tad too dark and haunting for a spring song? At least I would probably reckon with something more cheerful after a cold winter.
Maybe I need to check which songs from Ayu typically count as spring time songs, haha
