Another task I undertook which was along the same lines as the 25th birthday invitations were a set of 60th birthday invites for a close friends older relative.
For these invites I used a different style and theme for the design as they were for a different target audience.
Because of the change of target audience I lightened down the brightness and boldness of the invites and kept it quite a simple design.

Personal details on the invite have been blurred out for privacy.
Click the image to see full size.