I actually just got a free license of another tool called "Screenshot Captor" and I am very surprised how powerful it is.
It can grab an image from any source... region, window, all desktop, fullscreen and even from webcam.
You can put a frame around the image or a ripped paper effect like I did below.
It can blur, highlight, etc. Real simple but powerful tool. It even comes with clipart library that you can drag into your screen shot.
Here is a sample I am playing around with.
View attachment 5285
The software is free to download. You can donate any amount through Paypal to get a free lifetime license or simply shoot them an email that you are not able to donate but still would like to get a lifetime license. I just tried my luck and they sent me a free license.
If you are interested, just google up "screenshot captor" and it should be on top of the search result.