ellos lucen

they shine, they look (good)

→ lucir
luc shine + en 3rd-person plural present (indicative or subjunctive)
verb · third plural · present indicative Rare #38,651
they shine, they look (good) Present tense (ellos/ellas/ustedes) of "lucir"; often used to talk about how someone/something looks (especially with "bien").
SP: Tus zapatos lucen muy bien.
EN: Your shoes look very good.
Conjugation of lucir
Indicative present
SingularPlural
First luzco —
Second luces —
Third luce lucen
Subjunctive present
SingularPlural
First luzco —
Second luces —
Third luce lucen

Todos lucen preocupados.

Everyone looks worried.

Las cosas lucen estupendo.

Things look great.

Las personas lucen como hormigas.

People look like ants.

El verano es la estación en que las mujeres lucen más hermosas.

Summer is the season when women look their most beautiful.

Las cosas no lucen tan bien ahora.

Things aren't looking so good right now.

— Dos hermanas (2003)

Pero me parece que las modelos lucen como niños, ¿no?

But it seems to me that the models look like children, don't they?

— La escafandra y la mariposa (2007)