Regional Encounter in Queretaro

Jan and I went to Queretaro to give workshops on the Manuscript Method and Apologetics from Dec. 18 to 22. The main speaker shared on Revelation 1-3 and showed that Jesus is the main theme of the book.

The students were divided into four groups to look for specific characteristics of the book like how are the words of the first chapter repeated throughtout the whole book.
What OT passages are mentioned in these chapters? What is the style of literature?