Looks really good in the second video. You may want to consider open chord tunings and slide as a way to make a VR slide guitar. Also, consider marking frets directly on the string itself, with 3, 5,7,9,12,15,17,19,21,24 as a different color marked fret than the rest on each string. Allow tilting the string plane via settings, in all three axes. Replace string vibration with a color change on finger tip on contact. Allow right four fingers to latch so index finger owns string three, middle owns string two, ring owns string one and thumb owns strings six, five, four.