The problem is that you practicly only use 2 or 3 chords, wich makes it pretty boring and far from 'classical píeces'. Also the rhythm is everywhere the same. Maybe a couple of gotics or kelts can enjoy it, but its not good enough to be able to enjoy bigger crowds.
So work on more variation of your chords, rhythms and build ups, intro's and climaxes.
good luck,
gyzzzmo