You bring a lot to this video. So let me start by saying that the movie you interspersed with your guitar is quite beautiful.
It must have taken quite a lot of technique and hard work to produce this video. I have seen other video clips of this Cello Prelude and they usually have landscape shots of rivers, flowers and mountains as a central theme. I had never seen an aquarium attached to Bach's music. Quite interesting. The only problem is that, at least in my case, I was focussing on the images and not really actively listening to your guitar.
I had to go back a second time to see (i.e., hear) your arrangement and performance.
This first thing I heard different was of course the bass part. I was intrigued so I downloaded the score to be able to examine and try to play your arrangement. I have to be honest and tell you that, am sorry I didn't like it all that much. Let me tell you why.
There are many versions available which have a very sparse bass line and are much closer to the original cello. About 8 years ago my teacher and I examined about 5 versions and finally chose the one made by Per-Olov Kindgren. One of the things I like about this is that the focus is on the phrases, scales and modulations which run mainly on the treble strings. The bass is like a continuo supporting the lace-like voices above.
And what I really like about the standard arrangement is that I can play it well!!
Without having to make so many fingering jumps to play your bass line, I can make the whole thing flow smoothly, I can make music by stressing the different voices and concentrate on color, tempo, etc.
I felt the bass line you added takes away the simplicity (and in my opinion beauty) of the original bass line. Needless to say, your arrangement is quite complex for me to play and hence much more difficult to come up with a nice clean version of it. I'm not a professional player; only a guitar lover. I did read (not performed) the whole thing and your arrangement puts the BWV 1007 Prelude right out of my league.
Maybe my guitar heroes could do all this with your very rich arrangement. I can't so I'll stick to Kindgren's arrangement.
Finally let me add that I really admire you ability to make such an arrangement. You must know quite a bit of music theory. I couldn't begin to do that. Bravo!
PS: I just re-read my post and one way of reading what I wrote would be:
"I don't like it because I can't play it!"
It's true that I can't play it. However, what I'm trying to say is: "I like a simpler bass line."