Hi David
If you are new to CTA5 then it may be wise to start with an existing character and use that as a template to create your own character.
So in your Content Manager > Actor > Human > 1_G3 360 Human folder you will see you have a character called Roger who has a back facing option. Using this character you can send it to your image editing software from Composer mode and change the existing sprites with your own sprites.
You can find a tutorial on changing sprites below which should help.
https://www.youtube.com/watch?v=AIQ8ArWQiYc
Peter
Forum Administrator
www.reallusion.com