That's great Greg - you can fiddle around forever with these pics.
You should thank Louie Atalas - all his videos are here:
http://www.youtube.com/channel/UCJ5b6pFHBGe66vsuSaXb-0A
I consider all his videos essential & many people here
would benefit greatly from using the techniques shown.
Of course it does require Photoshop.
cheers
Allan