Ella le mira a la pintua de Pablo Picasso
Nosotros vemos el teatro.
Ellos admiren el mural de Diego Rivera
¿ Comprendes tú español?
Él ve el arte de Frida Kahlo.
C... which in english means "the sign"
You could fill it in with a lot of different words depending on the region, but I would personally go with either quisquilloso or exigente. Both mean picky eaters in this situation.