In case you're interested, here is a photo I took in the Museo Marítimo Nacional, Valparaíso, Chile - a full-length stained glass portrait of him: https://i.imgur.com/XSr6wwG.jpg

There is also a monument to him in Valparaíso - https://es.wikipedia.org/wiki/Monumento_a_Lord_Cochrane - he is pretty well known here.