I always thought that French-speaking countries of the Americas are not considered a part of Latin America - I might be wrong about the French Caribbean and French Guiana, but I am pretty sure I am right about the Francophone Canada and St Pierre et Miquelon.I recommend you change the "Romance language" clue to "Spanish and Portuguese".
French is but English isn't. The core of English is of Anglo-Saxon origin. It took heavy influence from Norman French later and evolved over time but it is still classified as a Germanic language.
the capital of Argentina's most populated Province is "La Plata", Perú's capital is "Lima", the spanish name for "Andes Mountains" is "Los Andes". There, you can have 6 out of 21, rather than 2 out of 21 questions with South America only, and that's just at the top of my head. Also, there are around 50 other countries that I'm sure have other "L" named cities, lakes, and other.
Of the 13 of 21 that are in the U.S., 3 are Spanish names, 2 are French and 1 is Italian.
I can think of nary another south of the U.S. that hasn't been included.