Villagers visually use their workstations

Currently when interacting with a workstation, villagers just stand still and do nothing. I suggest that each villager profession has some kind of sign to show that they are in fact using that workstation. Here's my suggestions for what some of the profession could do:

Armourer - the blast furnace has its 'on' appearance as if something is smelting in it

Butcher - like with the Armourer, the smoker shows its 'on' appearance as if something is cooking in it

Farmer - the composter fills up with compost until full then empties. It it returns to the level it started at once the farmer is finished working

Fisherman - the barrel displays the unused fish barrel texture from Bedrock edition

Librarian - the lecturn has a book in it if it doesn't already have one

Weaponsmith - the villager holds a sword over the grindstone