And +1 from me too. I'd be fine with it being a separate feature, maybe even a once a year chance to win portraits, such as during Carnival or Halloween.
Just as some earlier Event Buildings are brought back now in the Antiques dealer and in some events, portraits could be revisited in a trip down Memory Lane.
Maybe you could win mask pieces that you can assemble into a portrait of your choice, or, as an alternative to the regular portraits every event gives, you get a mask - a token you can change for a portrait.