SD Mia drawn for decoration along with flower basket in
"Monster Musume no Iru Nichijou Special Event - Tashuzokukan Kouryuu Party"
on this 15th Nov. It's a simple drawing of Mia with Darling doll.

As for the actual picture of the flower basket, see the link below
https://www.facebook.com/amamiyasora.THfanclub/photos/a.451103655091440.1073741868.245788468956294/466883233513482/?type=3