UK Scholarships?

[Coleoptera-Kinbote]

I applied for a few programs in the UK (I'm from the US myself) and while the US programs I applied to decide funding based on your application, with no separate forms required, the ones I applied to in the UK encouraged me to apply through online forms to 3-4 other scholarships. While they were certainly not shabby, and would cover 50-90% of my tuition if I get them, they are, of course, not a sure thing, so I'm looking for more in the meantime. Are these the only opportunitues? Has anyone who's been through applying internationally had luck with getting these sort of scholarships?