Sounds good, but just don't forget the old saying that one can't make a silk purse out of a sow's ear.
As it applies here, it means that you should think of the task of getting good, realistic photos as 90% good photographic technique, and 10% as after-the-fact tweaking in PS. For example, there are certain problems with a photo that essentially can't be fixed in PS, so you have got to get them right at the time you press the shutter. These include overall composition, pose(s), expression(s), timing (particularly for sports), lighting (especially of landscapes), etc. OTOH, other aspects of a photo like a bit of an error in exposure, color, cropping, etc. *can* be fixed after the fact, so you don't have to nail these aspects quite so perfectly at the time you press the shutter.
OTOH, if you are interested in fantasy composites, you still need reasonable component photos, but the ratio of effort is tilted much more towards photoshopping.
Tom M