I’ll make a few comments about your performance/interpretation, which I think is the biggest area you need to work on. Also a little bit about the transcription. I basically focused on the first few measures.
I admire you for transcribing Schumann, he was a superb composer of so many beautiful pieces and melodies. It’s too bad he didn’t write for the guitar! I know how difficult it is to do a good transcription: I have tried and so far have never been satisfied!
The piece is about a child falling asleep and is marked “p” on the piano score. I think the performance should be really quite soft and sensitive, not loud at all and even gently beautiful. So far this is not how it sounds from what I can hear.
There are at least two voices here: the bass and the treble. In general, I don’t think that in this small piece the bass is the theme therefore it should not be the loudest sounds, yet you immediately start in with a very loud and even unpleasant-sounding bass “b” note: this needs to be much quieter and gentle. It should set the rhythm and harmony in place, but it is really echoed by a sort of rocking sound of the treble, I mean the final two 1/16th notes in the first measure: f sharp and b.
I can only slightly hear the lowest note, the ‘e’ on the 6th string along with the ‘b’, but it’s actually more important than the ‘b’ at this point since it helps establish the key of E minor and also since the bass is basically a descending: ‘e’, ‘d’ sharp, then ‘e’, then ‘d’, then ‘c’, then ‘b’…
The syncopated g note in the treble of the 2nd measure should get more emphasis, which you give it but I think still far too much and it isn’t a very nice sound, either!
I think that how you are playing the f sharp on the 4th string in the 1st measure is also way too strong, this f sharp is played considerably more strongly than the highest f sharp on the 1st string which follows, which I think doesn’t make musical sense. I actually would probably play both f sharps on the 1st or 2nd string (actually probably on the 2nd string based on my quick fooling around with this, it gives a warmer sound).
I think also that at the end of the 4th measure you need to find some way to incorporate the ‘d’ sharp note, otherwise the harmonic progression is too vague and misses this really critical half step leading note.
I played around a little bit with my guitar and I might end up just forgetting about using the 6th string, play the very first chord in the 1st measure as an E minor on the 2nd-4th strings, play the ‘c’ on the 1st fret of 2nd string, etc.