What were the differences between the February Revolution and October Revolution in terms of their leaders’ objectives and how they used power

What were the differences between the February Revolution and October Revolution in terms of their leaders’ objectives and how they used power?
[Instruction; as this is a short essay, you must limit yourself in your answer to discussing events in the years 1917-1918, though limited reference back to aspects of the pre-February Tsarist regime is allowed, where necessary, for context]