#2
Okay I guess pretty basic stuff.. just sounds like you need to work on your tapping to me... but thats just me!
#3
well u definitely have a cool melody there, tapping is ok/good, you could make it into a decent song, though imo u would need to tap less coz it gets a bit annoying (i aint a great fan of tapping). maybe chords in a backing track would have made it cooler.

if u want to crit my ideas, look in my sig, i dont mind really