While at first glance this may seem impossible to you the reality is that you can accomplish this task.  When completed you will be able to feel very good about how much you have learned and how much you understand and how much you can actually do.  Here are the steps in an overview:

After you capture an image it is up to you to optimize it so that it is what you intend it to be.  The viewer should not have to 'interpret' anything.  The image should be all.

Using the workflow that I have provided you repair the following images.  Use the entire workflow for each image...ending at sizing for email.  Sharpen (of course) and upload to your Flickr album.

Frequently you don't want to alter an entire image but rather you want to alter just part of an image.  For example, you might want to remove something from an image...or you might want to correct the lighting on part of an image...or you might want to sharpen something in an image.

To do these manipulations you need to be proficient with the Selection Tools.  The images below are provided for you to practice with.  Copy the images from this article, paste them into your image editing program, then select the item from the images using the appropriate selection tool.