Zoom and Clean
There are some isolated bits left to clean up. Zoom in and use the Magic Wand tool to pick them out.
- The keyboard shortcut to Zoom In is CTRL++ (same as in Flash, by the way)
- Experiment with the tolerance settings. Use CTRL+Z to undo and retry if needed.
- Press Delete and use the keyboard shortcut CTRL+- to Zoom Out!
Looking a little better: