She doesn't get dressed up too much or wear too much make-up or jewellery.
ーShe's not too showy at all.
「彼女は全然飾り立てていない」
showy で「飾り立てる・派手な・華やかな」
ーShe doesn't get dressed up too much or wear too much make-up or jewellery.
「彼女はあまり着飾らないし、メイクや宝石で飾り立てすぎない」
to get dress up で「着飾る」
to wear make-up で「化粧をする」
to wear jewellery で「宝石で着飾る」
ご参考まで!