I listened to both versions and I like the second one better, it's a nice song with a good melody and good vocals.
I would probably try to do the best of both worlds, i.e. I would choose the second version and use the counter vocals only at 3:21, not at 3:08.
In general, I think female BG vocals would work better, but it's already fine with your voice.

The mix itself is good, I would just turn down the treble on the guitar strumming at the beginning of the song.

Making bits and bytes sound good...

Goldmania Bella - A One-Man Girlband with no fans
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