The one on the left is not clear

The one on the right is the rose-shaped logo of "Vampire Knight", which is often seen in the entire anime

The one the poster mentioned belongs to the anime Peripheral products?

"The Lancaster family is on one side, with the red rose as its symbol; the York family is on the other side, with the white rose as its symbol. These two feudal groups compete for the right to inherit the throne. ?The war lasted for more than 30 years, so it was called the "Rose War" because the rose was also called the "Red and White Rose War".

In this way, both sides of the battle are symbolized by roses.

As for the rose symbol of the Vampire Knight, I remember seeing it somewhere (maybe in comics). Teacher Tōno Mori, the manga author, said that she drew the roses with a "tingling feeling"...? something like that.

It can be seen from here that the pattern is the original creation of Teacher Tongno Mori~?

Please pay attention to the rose pattern in the background of the picture