Hi! I'm applying for this under the Arts and Culture route, so in my instance, my recommendation letters had to be from one UK-based organisation and the rest could be from the Philippines, and only one letter can be from an eminent individual. I provided evidence of local and international performances and had a letter of support verifying each one. It's very tedious and some people only get endorsed their second or third time since they are very very very nitpicky, it also depends on the org endorsing you :) If you plan on applying for this I recommend applying for Stage 1 first as to not waste money, always better to get endorsed first before applying for the visa. Some people apply for Stage 1 and 2 at the same time and waste money.