Excellent work.
In this form, the uniform of this regiment (if there is a letter "C" on the epaulette) even extends the dating of the figure from February 1811 to April 1814.
One small nuance - under the grenadier emblem, a three-fire grenade, on the shako there is a leather trapezoid pocket for installing the end of the plume, it should be black, like all the other leather parts of the shako of that time (yours is mistakenly painted gold).
Beautiful work Pierre. It is nice to see your use of oil paint. The shading is very well executed without the high contrast which seems to be in vogue these days.