After graduating with a degree in Marketing, Advertising and Corporate Image, she was given the opportunity for a cultural exchange with the European University of Madrid to learn up-close from the master works of European art, which inspired her to follow the path of the arts. 

Márquez studied art at Ganexa University and with the painter José Blas Petit, "who motivated me to give free reign to one of my passions, drawing and painting, trying to polish my hidden talent to let it begin to shine," she says in her biography.

Her art strives to capture Panamanian scenes, including her country's farmers, nudes, faces and Indian bodies. She claims to love drawing nudes "because it lets us forget the morbidity and concentrate on the perfect creation of the human figure."

Gisela Gaffoglio, the gallery's curator who discovered Lineth, affirmed that the artists in the "Eclecticism" exhibition have produced a "variety of styles, influences and techniques that are surprisingly held together by a thread of originality. They are rebels against the trends."