I thought the changeling that shared Odo’s look chose it to make Odo feel like he belonged. And her disdain for solids might have made her not want to look too much like them.
The only other changelings I remember from DS9 were,
other changelings
The other changeling sent into the galaxy alone like Odo who had more detailed hair and features, and the espionage agent Sisko talked to in Paradise Lost who did a convincing imitation of O’Brien.
I thought the changeling that shared Odo’s look chose it to make Odo feel like he belonged. And her disdain for solids might have made her not want to look too much like them.
The only other changelings I remember from DS9 were,
other changelings
The other changeling sent into the galaxy alone like Odo who had more detailed hair and features, and the espionage agent Sisko talked to in Paradise Lost who did a convincing imitation of O’Brien.