i think you have done a good job, but….
1. i am viewing via a laptop and the "name and date" card at the bottom right of the context box shows as clear white border, when i adjust my screen i then see that there is a light border. Darkening the border of that tag would make it stand out for those with laptop screens.
2. The bottom left hand corner of the content box seems to be rounded off with the border box cut short…. if i were you i would make it the same as all other visible corners.
good luck and a great effort
p.s. I would take their mobile numbers off as well! she may get some strange calls and then put it up again after deleting this post :)