Improve the colour and brightness yourself
The Auto Correct feature is a good start but you can also adjust the colour and brightness of your photos yourself. Select the picture, choose the "Edit" button at the top of the screen and select "Adjust Color and Brightness". You can try out each parameter to see how it will affect your photo before saving it.
Increasing the sharpness of your image can improve textures in your photo and make them appear clearer. The best way to see what difference it can make is to try out the feature. Select your picture, click on the "Edit" button at the top of the screen and select "Increase Sharpness".