Both are great and you should be congratulated for your achievement in singing that is a combination of deep understanding of the song, the spirit of pursuing perfection and your pure talent.

The second sounds more fluent and smoother, without loss of strength. The first one has greater effort and strength. It is difficult to sing as what she did. However, yours seems very close to the original singing. Some low tone may need more air support to make the whole song more forceful.

She was a great figure in the Japanese singing and performing art. She belongs to the whole world. I am glad you like her singing. No need to thank me and I should thank you.