Leafs Project: 1.) How to make stiv grow from point A to point B? Please can somone advise?

[ISUther]

Hello, 

I decided to change the way i learn Houdini. And instead trying to do one big project all at once gets me confused i decided to do it step by step.
Also instead taking and using copy method from some one else tutorial create something myself from scratch. I hope that i am capable to learn this way more.
Of course time to time i will mimic some one else tutorial and try to change that and create something else. But i think this will be my first full project. 
Step by step.
Goal is create logo that you see here but i want to animate it and give it more flavor.

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Animation description: 
1.) Main stiv starts to grow from middle bottom.
2.) That stiv grows to left, and when it grows same time from that stiv smaller stivs for each leafs grows and at end of those smaller stivs will evolve a leaf (shape that i have in logo).
So left side leafs must be different and they can`t be same shape. They must be the shape that you see them in logo.
3.) I want that stiv that grows to left has also small twist in it so it wont be so arc, but it cant be to messy as leaves should grow in to the place where you see leaves in logo.
4.) At the end of animation leafs will stay but stivs will dissolve or burn away or disappear in some other manner. 
5.) Leaves should have very high detail so i can do very close camera shots and see leaf bumps and depths 
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This topic question:
1.) How to make stiv grow from point A to point B?
What node to use?
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What i did so far?
1.) Created "Circle" geo node
2.) Dived inside "Circle" geo node anc changed Divisions to 50
3.) Changed "Arc Type" to "Open Arc"
4.) Changed "Arc Angles" (205 and 280)
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I attached hip file. 
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Additional notes!
 *  I am planing to do everything step by step. The project is big, but i split it to smaller pieces so this way i hope to learn more.
 * I tried to do everything at once and faast but this is not how things work. 






 

Stiv.hip

Edited September 29, 2016 by ISUther