Cleaning How to Draw Lines?

[tart]

I'm trying to clean and redraw these lines, but how do you do this?

Any help would be greatly appreciated!

 

[benii]

clone stamp.
you can also use arrowheads, with concavity set to 50% and length set to 2000-3000%, but clone stamp is easier.

 

[tart]

Oh I see now. Thanks for the help!

 

[Gradonil_Ral]

Clone Stamp should be enough for this one, but if there was less to work with, you could always recreate the lines by yourself:

1. Open an empty layer.
2. Outline the speedlines with Pen Tool (not just the missing parts - everything).
3. Fill them in with a gray pattern you created or copied from somewhere.
4. Apply a white-black gradient in Hard Light mode.
5. Done.

 

[tart]

Sorry for the late reply!

Thank you for the advice, I'll try that next time!