Is this type of dress available in any store?

MD11

Looking for this dress and also a beanie like attached? Can you help me? ????

Sevrin

There are some similar dresses by tentman. https://www.daz3d.com/tentman

The beret is trickier.  There's one here for G3F in the Street Artist outfit, and another at Renderosity in the La Parisienne outfit by pamawo.