trying to fit too much information instead of expanding.
The purpose of an essay is to give enough explanation and examples so that a person can understand a point you want to make. If your point is simple, you can make it in a sentence, but if it requires more explanation you have to write a paragraph. And if you really need to give a deep discussion of some idea, you can express it in an intro paragraph and follow it up with several paragraphs, each of which has a clear topic sentence that supports the main idea.
One essay = one big idea.
And if you think the points you make require elaboration, you should try to do it. :-)
about the White Man's Burden. The British characters were revealed to see the colonization of Africa as their duty, a way to pacify the native savages with the use of religion, and a way to fix the Africans that entitled them to do as they please.
This really makes it sound like YOU think of the natives as savages and... at the end, "a way to fix them that entitled them..." does not really make sense. You might want to reword this part.
Your essay has great structure. The biggest concern I have is that you don't explain clearly what the White Man's Burden is, and even worse is the fact that you are writing about it in a way that makes it sound like you are validating it. You should explain the cultural egoism that is involved. Is cultural egoism the right term? You should write these sentences in a way that shows the folly of this way of thinking.
And yeah, the title is iffy. The title is a good opportunity to refer to the "burden" in a way that shows that you understand the moral of the story, the lesson to be learned.