What are three things Puritans wanted to reform in the Church of England?

The list of things the Puritans wanted to reform in the Church of England is long, but here are three important ones:
Christian iconography in the church itself—This means that Puritans objected to stained glass windows, ornaments, religious paintings, and sculptures. Puritans held their services in simple, plain wooden meetinghouses with simple wooden pews for worshipers.
Puritans did not like musical accompaniment in sacred music. Instead of using organs or harpsichords, Puritans preferred to sing psalms and hymns in unison.
The Puritans did not want their important rituals to resemble those practiced in Catholicism, many of which the Anglicans retained. Puritans did not exchange wedding rings in marriage ceremonies or kneel for Communion. A Puritan baptism did not include the minister making a sign of the cross.