As
correctly noted by the changeling impersonating
Robert Foxworth's
admiral character in that 2-parter when the Founders went to San Francisco.
Laas the Louse
tried to educate Odo in the ways of shapeshifting, Laas's only positive contribution was
that.
Prior to Kid Nausea, err, Laas's failed teaching experience, the
Femme-Odo didn't accomplish much in the Teaching-to-Shapeshift Dept either. She was too busy

being
“Romulan Commander Woman” to Odo's
“Spock” to know

she was doing.
Odo never pushed his shapeshifting to the max. He could've/should've counter-infiltrated the Dominion, pretended to be a Founder
more than effing once
Not to mention imitating Jem'Hadar, Vorta, and Cardassians.
Odo also could've used his
authoritah, as a(n ersatz) Founder, to order around Vorta & Jem'Hadar
Back to core-topic:

was up with Odo's untapped shapeshiting talent(s), assuming there are any


Especially, in particular, Odo's utter failure at impersonating
human(oid) faces
At series end it would've been

to show Odo shapeshifting into a perfect double of Sisko &/or other DS9 crew. This would show he finally
has it & doesn't belong on the Island of Misfit Shapeshifters
2 Herberts {Femme-Odo,Laas}
failed at teaching Odo how to be just simply a garden-variety changeling.I'd like to think in the decade Odo's been a Great Linker, that
now he can
finally imitate human(oid) faces, as well as infernos, clouds & interstellar debris.
I mean, seriously

Odo
Your view(s)>