The pronounciation will vary partly depending on what part of the country you are in, and what national background the person comes from. Northeastern Americans tend to pronounce A’s in general like your land example, Hispanics would always pronounce it like llama, unless corrected. Although, sometimes there is no specific reason, just how the family pronounces the name.
So many names like this. I know Elenas who pronounce ell-eh-na and others e-lane-a. I could give you tons of examples about names. Diana, Jean, Guy, last names too.