I think the OSMC skin as it is, is very good. It ignores the tendancy with a lot of these type of things, to over complicate things. I enjoy the simplicty of it. I even like the white to yellow selection highlight.!
I do like the Gradient version, above, with the layered selections. I'm less keen on the picture version as the pictures aren't relevent to anything. I like fanart sometimes when browsing movies, however even this can be disapointing as some movies, bands, tv series, have awful fanart.
Keep it simple, clean and fast. Good work though.
One thing i'm not sure about, which might not be related to the skin, but what is the simplest way to turn substitles on and off when watching a movie? When using the Kodi remote on my iphone for the pi, there was a button i would use, but now i'm using the vero 2 i use the supplied remote, so was wondering if there is a short cut.?