Another interpretation of "You shall not make for yourselves" (Exodus 20:20): that you should not say, behold I will make one for decoration, or in the manner that others do in the provinces; therefore Scripture teaches, "You shall not make for yourselves."
Forbidding Images Made for Beauty or Imitation
Yalkut Shimoni on Torah 303:2
דָּבָר אַחֵר לֹא תַעֲשׂוּ לָכֶם, שֶׁלֹּא תֹּאמַר הֲרֵי אֲנִי עוֹשֶׂה לְנוֹי אוֹ כְּדֶרֶךְ שֶׁאֲחֵרִים עוֹשִׂין בַּמְּדִינוֹת, תַּלְמוּד לוֹמַר לֹא תַעֲשׂוּ לָכֶם.