I just listened to all three tracks.
The backing track alone has already a nice Pink Floyd vibe that I really like.
A bit too many unexpected chord changes for my taste, but hey, I write blatantly banal pop songs smile

Add your guitar playing to that and the result is right up my alley.
Great playing, great tone!

The third version has beautiful vocals (and a good singer), but I prefer the second version because it's much more emotionally moving.
I'd rip the vocals out of the Suno version and add them to your tracks.
Best of both worlds!