#15-I do like what you were trying to do but not a fan of the color maybe try a black/grey/white color scheme.
#16-Its nice but logo just seems a little to big and not a fan of the color scheme
#17-Its nice but that red color is a little to bright maybe tone it down some.
#18 and #19-Not fans of its seems to gear more towards music and I won't something sound mixing wise not music.