Great! Beautiful colors and structures!
I would prefer not to have the ugly (sorry) bars on the upper and the lower rim of the image. They very much irritate the images´s elegant purity.
Hide controls - on the right of the "i"
Yes - but not all viewers know that.
I would prefer to start with a screen where almost NOTHING irritates the image - except one or two half-transparent buttons.
I mean the visual impact of the image is too delicate for becoming disturbed by such clumsy items.
Just my personal view.