描写丰富繁多的成语

all-embracing/all-inclusive

glittering jewels to delight the eye (idiom)/fig. a dazzling lineup

nothing more beautiful can be imagined (idiom)

nothing is too bizarre/full of extraordinary things

(idiom) not excluding anything; all-encompassing

with everything needed available

everything that should be here is here (idiom); all one can think of is on hand/to have all one needs

more than one can attend to (idiom)/deluged (with inquiries etc)/overwhelmed (by the beauty of the scenery)

more and more emerge/innumerable succession/breeding like flies (idiom)

enough and to spare (idiom)

the more the better

as numerous as the hairs of an ox (idiom)/innumerable/countless

richly colorful