This time, I don't dodge the tonton's copyright, no offense to the master of portrait (Gambas). I tried to render his whiskers (of Georges, not of Gambas), lines of his forehead (idem) and the mischievous wrinkles under his twinkly eyes.
Be careful, this one is very hard, you should count a lot to solve it. I add, as usual, some hints after the felt difficulty to guide those who need it.

Difficulty : ******

Tested, logical.
Edge-logic can help to start.
These tips can be useful once the cells R1C1-R5C10 will be filled:
- work with the mustache until you can place the 3 from C20 (particularly thanks to the 1 from C10).
- count the exact number of cells you still have to blacken in rows R1-5 according to the rows, and the maximal number of cells you can blacken in rows R1-5 according to the columns. Normaly, you find the same number (else, you should keep working a little), then the related digits are necessary on the rows R1-5. What allows you to complete the remaining part of the grid as if those digits were already placed.
- smile-logic can help to finish.
Good blackenage.