The phrase "after the first workshop" is correct and usable in written English.
You can use it to refer to a time period or event that occurs following the initial workshop in a series or sequence.
Example: "We will gather feedback from participants after the first workshop to improve future sessions."
Alternatives: "following the initial workshop" or "subsequent to the first workshop".
I remember that after the first workshop, I couldn't write for a week.
Partners did not cascade the concept within their organizations after the first workshop to a large extent, thus necessitating more and more engagements in addition to efforts to reach organizational leaders.
After the first workshop (that we made totally pro bono, me and artists invited) and after seeing the benefits of it, I decided that I had to find more ways to do it and new ways to fund the project.
Similar to the rating of key indicators, ratings on the Likely Effect of the Lesson did not improve further after the first workshop.
The main outcome measures are changes in clinical practices that are recommended in RHL measured approximately a year after the first workshop.
MSH staff and provincial facilitators visited each health unit at least monthly after the first workshop to support the participants and assess progress.
After the third workshop, I concluded that I should put more emphasis on modeling: It is interesting that although the participants in each section used most of the scientific practices in the activities they designed none of them used models even though they knew that it is one of the scientific practices.
After the second workshop, practitioners were able to report consultations online and to receive feedback from the trainer team.
After the second workshop, 43 practitioners provided either partial or full reporting of clinical case data to the training team for feedback.
Approximately eight weeks after the second workshop, an independent evaluator conducted a focus group interview attended by five clinic members and one student (staff/student exit).
