At this point, the infrastructure part of the project is working stably, and there is enough data (60K+ measurements) to build useful graphs. I have started working on a design document to restructure the dashboard & graphs in it, and it is open to everyone's contribution & feedback. Please tell if there is something you don't like or something could have been designed better. Thank you in advance!
The document is available in the wiki page: https://gitlab.torproject.org/woswos/CAPTCHA-Monitor/-/wikis/Dashboard-Graphs
Possibly helpful links: