Restoration of Large 19th Century Frame

Hello,
Today I started the restoration of a large wooden gilded frame from the nineteenth century.
The frame is decorated principly with twisted acanthus leaves,  on the inner edge with twist ribbon ornamention and a mall round bead (pearls) repeated in series along the outer edge.

The frame is very dirty,  with many broken pieces including some lost beads, and
the metal gold leaf is very dark  in some areas.
The first thing I did was vacuum it, and that was when I discovered that a large part of the central molding was completely loose and not glued down, so I took it off.

Then I started to glue down all the loose parts with polyvinyl acetate (PVA).
Tomorrow, when all parts are secure and glued, I will continue with the cleaning.
Thank you for reading.