Well... I'm not too sold on original nintendo UI design. It looks "unfinished" at best. Maybe they are hiding some stuff on purpose? I dunno, but it's not even "minimal" it looks "empty" to me. Don't get me wrong - I can appreciate a good use of white space, but this simply looks like designed for really small screen and blown up on big TV.
Keep in mind that those my thoughts about the ORIGINAL design - not your effort 
I know yours is just a starting point - but I think you should steer away from recreating the original UI and take it to another level. Maybe simply adding a fanart or video background would change it drastically (for better) or maybe adding a big bold typography is a way to go?
I tried to be faithful to the original interface, with some minor adjustments, and I understand when you say that you think it's a little empty (mainly the top), I also found too. However, I've imagined the option to pass the videos snaps at the background, becoming more interesting.
Other options, such as grid view, search, info, and Favorites screen, are also being created, without relying on the interface of the Switch, just using the same idea, but having in mind to stay functional for what a frontend intends to be.
