Aside from Tosin's preternatural musicianship, what is fascinating about this video is how he relates to the guitar.
After one week with the instrument, Tosin's hands are beginning to acclimate to the multi-scale fretboard. Although it looks subtle in the video, string offset is significant: 27.5" bass to 26" treble. There are advantages in terms of tone, string tension, and finger reach. In upper registers of the fretboard two octave chords are possible across all seven strings. Essentially, he is gaining additional fret reach as seen in the video (1.30).
"dude your hands look like a spider running away from something. Or a spider that lost four legs and is running to try to save the other four. either way, you're a really good guitar player. i would love to play as good as you someday."
The deep cutaway beneath the second octave frets makes it difficult to install a neck pickup, however the benefit is unrestricted access to those upper frets. His left hand never contacts the body or feels constricted, but instead freely floats even into chord vibrato.
Perhaps most important to me is his left wrist is neutral no matter where on the neck he plays. Tendons are unstrained as the wrist remains straight and relaxed. This gives him additional finger speed. That is due to correct neck angle in relation to his torso. When he stands, the guitar will remain identically oriented to his body, providing consistent feel for practice and performance. Note how the guitar balances without a strap.
"If you squint, it resembles Pac-Man. That however makes it even more awesome."
Patented Intersecting Plane Neck Profile™ matches his classical fret hand position. Only one moment (0:43) did his left thumb appear over the top of the neck, which means his thumb remained centered and balanced against the P1 surface throughout the rest of the clip. The IPNP™ profile is also significantly contributing to his neutral left wrist position.
Note also how his right hand falls naturally along the intonation line of the bridges (1:00). This helps him control harmonic response during palm mutes.
Throughout this video, Tosin's shoulders are relaxed and comfortable. His right forearm is fully supported and encounters no sharp edges on the body. His left elbow hangs straight down, effortlessly pivoting the forearm.