Image size and choose the size you think you need. After sizing, the follow-up is color correction. This step takes a lot of putzing around, and is different with each individual. For me, the main points I go to are levels and contrast. These are both under the Edit menu.
Results vary between photos.
My results were not too bad but not the greatest. I am still learning. I was just happy to get the people to look the right color. Sometimes if you make a mistake, it turns out completely horrible. It takes practice and skill to get it to look almost perfect.