Plains weaponsmith 1 fixes and improvements .

"plains_weaponsmith_1"
Roof line does not extend one block out from the rear of the building. And looks strange compared to the rest of the plains buildings.
You may want to add a touch or open up the cavity in the roof part since mobs can spawn here.

(Optional)
Corner block at the table could be a step block.
Cut two block out above lava pit to give it depth.
You could add a flower pot on the smokestack so it looks like a liner for the chimney. This would look nice on all the chimney