erm i asked my teacher about them because obviously there in the marking criteria and he said not to worry about limitations i spose in a way its in the histiography, i mean you look at limitations in sources, not explicitly stated though. anyway further study no i didn't mention that. i think both of these things contradict themselves really. because if you have space to put in limitations etc then you probs haven't written enuf, i really had to battle mine down to get it within the word count. but then as long as you miss the limitations i think that you should have the space to fully examine the topic such that further study is not required. I think their kindof crude in a histoyr essay 2bh, they seem more relevant in somethign like science where obviously yor experimentation is never done. if you answer a quesiton than surely its done. i'm not entirely sure of what you mean when you say literature review. as i was going along if i cited a source i mite give a comment on the author, relevant background information, that is information which mite affect his judgement.
to link the points together i think the best way is through mini conclusions, at the end of each point compare what you said about that point and the one above, for example, just keep reiterating the relative important of factors, showing that you see them as tied in, part of the same thing. at the end of the day your not really being marked for the linking of paragraphs, its not english, but the importance of linking factors is important so doing it any point is good.
although stating point by point is effectively what i did i combined the points through the miniconclusions. hoep this helps
my main point overall is the research library. when the teacher suggested it i thought it would be pointless but esepcially if ur doinga topic thats done a lot the same old textbooks is boring and shows a lack of effort, if you have a wider range of sources it looks better. so i would advice going further afield,,,needless to say keep internet sources to a minimum.