Both #2 and #6 seem to have a shadow and mirror effect in reverse. This looks great on the web but how will it transfer to shirts & printed objects? Can you make a version without the shadow?
Here are variations without the shadow or reflection effect... as for printing, they print out just how it looks, like anything else... also lost the gray background which also doesn't matter - the logo would be delivered in multiple formats & exported with transparencies so it can be simply layed over any background...