To me the "figure" looks like a guy in his 30's peering in the window, receding hair, bright head close to the window. Too much contrast for
reflection. There is normal lighting on the figure's shoulder, and although it is in the right position to be more than one reflection overlapping
ie; the keyboardist's back, possibly the singer (not the keyboard stand - wrong angle), to me it definitely looks like a figure outside.
It's not what I want it to be, it's what I can make out.. just trying to see what's there
As much as I'd like to think there is a Rock 'n' Roll loving alien who travels the galaxy looking for gigs, too tight to cover a ticket or buy a
drink (I've seen the wine list, not cheap) but stand outside feeling superior because It's in another dimension or something, I don't think it's
very likely. As much as I'd like to see it, I just don't on this occasion.
As for the tall alien, I don't see it at all.
The white square in the glass could possibly be a reflection of a picture on the interior wall (see pic below). you can see the ceiling reflected in
your photos, and what looks (to me) like a pillar or wall on the inside.
As much as I know these entities are "out" there, in ways and forms we can't even comprehend, I remain around 90% sure that this one is from
Earth.
Yes, get a good camera. no need to worry about f-stops and shutter this and exposure that... you just want to point and shoot. (there is usually a
short delay when shooting with digital)
These are some photos of the bar from cibo.com, hope they help.
outside:
I think the window at the stage is in the back of this pic:
Lots of lights in this bar: