Frank Cranmer has performed a detailed analysis of the Marriage and Civil Partnership (Scotland) Bill which you can read here. His commentary includes comparisons with the English and Welsh bill currently in the House of Lords.
He also draws attention to the points which Kelvin Holdsworth has raised in 10 Unanswered Questions about Same-Sex Marriage which are of particular interest to those in the Scottish Episcopal Church. Similar questions may also apply to members of the Church of England and the Church in Wales, in due course, but it seems very likely that the answers will not be the same as in Scotland.