仕上げ and 仕上がる: finishing work, a result, and a forecast
Compare a painting's finishing touch and final polishing with finished bread and a suit expected early, without treating the shop's call as completion or receipt.
仕上げ: adding light and final polishing
仕上げ (しあげ) means finishing or finish. 「絵の仕上げに細い筆で光を描き加えた。」 means “As a finishing touch, I added light to the painting with a fine brush.” The finishing touch was adding light to the painting with a fine brush. 仕上げ identifies the finishing activity here; retain the tool and what was added.
「職人は仕上げの磨きに最も時間をかける。」 means “The artisan spends the most time on the final polishing.” The artisan spends the most time on final polishing. 時間をかける is nonpast here, rather than a report that the polishing has ended or a particular piece has been completed.
仕上がる: finished bread and an expected suit
仕上がる (しあがる) means be completed or be finished. 「焼きたてのパンが、香ばしい色に仕上がった。」 means “The freshly baked bread came out a delicious golden color.” The freshly baked bread came out with a delicious golden color. 仕上がった presents a completed result. The bread's color does not supply a result for the separate suit example.
「注文したスーツが予定より早く仕上がると、店から連絡が来た。」 means “The shop called to say that the custom suit would be ready earlier than planned.” The shop called to report that the ordered suit was expected to be ready earlier than planned. The call occurred, but the reported 仕上がる is a forecast of readiness, not a claim that the suit was already finished or received by the customer.
Separate the work, result, and reported forecast
The 仕上げ examples focus on finishing activities such as adding light or polishing. The 仕上がる examples concern a finished result or an expected one. Keep the bread's completed state separate from the suit's forecast.
Distinguish the reported content from the reporting action. 店から連絡が来た states that the shop's call arrived, while 予定より早く仕上がる gives the readiness forecast conveyed by that call, without establishing customer receipt.
What do adding light as 絵の仕上げ and the shop's call that a suit will 仕上がる early each describe?
Show the answer and why
The first describes finishing work on the painting; the second reports a forecast that the suit will be ready earlier than planned. The call does not confirm completed tailoring or customer receipt. The bread's finished color belongs to its separate example.