Because of the bold face type and the structure of the music itself:
The words in measures 1, 12, and 13 seem to me to be important tempo changes. The words in measures 6 and 8 seems to me to be related and are also tempo changes, though perhaps not as important? The words in measure 11 could be construed as either a continuation of the 'un peu retenu' OR (because of bold font) an important tempo change.
My thought would be to Capitalize, remove to free line, and add period to measures 1, 12, and 13.
My thought would be to remove words of m. 8 and 11 to a free line within word sign indicators.
My thought would be to place the cedez within the measure as a single word sign.
Is this too inconsistent with the print? Should I more consistently remove all bold faced tempo indications to a free line, indented one cell beyond the RH symbol, and add a period?