What do Christians think about these concepts?
1. Mother of God / Queen of Heaven
As far as I know, in Catholic and Orthodox traditions, Mother Mary is viewed as a uniquely exceptional human being. She is believed to be conceived without Original Sin (Immaculate Conception), all-holy, ever-virgin, and the Theotokos (God-bearer).
She is explicitly given the title "Queen of Heaven", while her son, Jesus Christ, is the King of Heaven. Furthermore, even in the Latter-day Saints (LDS/Mormon) theology, it is taught that all humans are spirit children of Heavenly Parents—specifically a Heavenly Father and a Heavenly Mother.
2. God the Mother
This concept seems entirely distinct from the first one. Groups like the World Mission Society Church of God (WMSCOG) explicitly teach that since both male and female were created in the image of God (Genesis 1:27), God must have both male and female natures.
They take prophetic and allegorical verses from the Bible and interpret them literally. For instance, they interpret the "Bride" and the "Heavenly Jerusalem" in the Book of Revelation as a literal "God the Mother." They heavily rely on Galatians 4:26: "But the Jerusalem that is above is free, and she is our mother." ---
