Tutorials:
Learn how to use Spot Removal Tools in Lightroom:
https://helpx.adobe.com/lightroom/how-to/lightroom-healing-brush-visualization.html?set=lightroom--fundamentals--retouch-photo
How to Color Correct Photos in Lightroom:
https://helpx.adobe.com/lightroom/how-to/color-balance-photos.html?set=lightroom--get-started--essential-beginners
How to Correct Parts of a Photo in Lightroom (using Adjustments Brush)
https://helpx.adobe.com/lightroom/how-to/dodge-burn-adjustment-brush.html
How to use Radial Filter
https://helpx.adobe.com/lightroom/how-to/introducing-radial-filter.html?set=lightroom--key-techniques--advanced-photo-editing
How to use Tone Curve to adjust Color
https://helpx.adobe.com/lightroom/how-to/lightroom-adjust-tone-curve.html?set=lightroom--key-techniques--advanced-photo-editing
More Info on Enhancing Isolated Parts of an Image (using Radial and Gradient
tools)
https://www.youtube.com/watch?v=3fUvfUfdfGU#t=36
More Tips on using Adjustment Brush
https://www.youtube.com/watch?v=lplFkS1RJCA#t=183
