Angels in the bible are described as being these horrifying looking creatures with many eyes, multiple heads (some with the heads of other animals) and some look like spinning wheels. Angels in art always look like regular people or babies. Why is this?
You are confusing separate issues. You're talking about seraphim, cherubim, and ophanim. They are not angels. In the Bible angels are always described as looking like regular human beings. Other celestial beings, such as seraphim, are differentiated from angels.
Carol A. Newsom, “Angels: Old Testament,” ed. David Noel Freedman, The Anchor Yale Bible Dictionary (New York: Doubleday, 1992), 251.
Hans Wildberger, A Continental Commentary: Isaiah 28-39 (Minneapolis, MN: Fortress Press, 2002), 421.
Hoppe, Leslie J. Isaiah. Vol. 13 of New Collegeville Bible Commentary. Liturgical Press, 2016, 27