NEVER thought someone would ever try to copy those Givenchy atrocities...guess I was wrong
The Miu Miu vs. Chanel doesn't offer an specially interesting case, the silhouette is fairly standard.
Regarding the Balenciaga top I think that was the whole point of the piece: to elevate that kind of tacky-souvenir-t-shirt design with some fairly interesting tailoring, whilist preserving the nostalgia factor.