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The second cover is more representative of your game. The first one looks like it could be anything -- a visual novel, etc.
The "PC Game" tag doesn't seem necessary. If you're uploading it to Itch or any other game site I think most people are going to assume it's a kind of game anyways. What would be more helpful is specifying what platforms it supports: Windows, Linux, OS X, Mobile, etc.
But isn't it similar for e.g. dvd-covers if they're designed in 3D or just shiny surface, maybe by a layered-level the more to flip the more it fades to a different pattern?
Which is a disadvantage compared to gifs or virtual games, over printed one's that can be in either plastic or steel-boxes (thinking of harrypotter's newspapers featuring moving images)...