-
I would remove the shadow under the header. May be it's a bit too much and not very useful of readability.
I'd to say that i would appreciate more if there was more details to discover.
I think it misses somes details, like may be something a bit crazy somewhere. like a real object ( sticker , paper, textures ... )
I thnik it's clean and well designed, but this is a bit cold.
Good work on colors and layout. :)

"for" readability" >> i'm not sure if this word exists... lol