I enjoyed "Tai o Toshi" — seemed well-produced and kept my interest — though it was a bit hard to judge the whole "song" from just a clip.
"Walker" was also good, though again I would like to hear more than just the middle "meat" of the song. I also felt the lower/slower bass could have been louder and more modulated, as it sounded the most interesting.
"Promises" was maybe the strongest of the three, though not by a whole lot. More went on in that "clip" than in the others. I did feel the drums could feel a bit snappier, or otherwise have more energy. Maybe compress them differently? "Crown" had better drums, but I wasn't as into its bass.
Anyway those are my impressions, for what they're worth...