Which reference picture yields best result?

[NikoBele1]

Dear Team from Hallo, from your experience, which of the reference pictures yields the best and most accurate lip sync result when driven by audio?

[xumingw]

most pictures meet follow criteria will generate good results:
1.It should be cropped into squares.
2.The face should be the main focus, making up 50%-70% of the image.
3.The face should be facing forward, with a rotation angle of less than 30° (no side profiles).
4.No occlusion.