Copyright issues and image editors

I sometimes draw pictures, upload them to an image editor (usually picmonkey and scrapcoloring), and then post them on my blog.

However, I just noticed that at the bottom of the webpage (in scrapcoloring), this is what it says...

© Copyright 2009-2010, Elsa and Stéphane Gigandet - ScrapColoring (tm) is an international trademark - All elements of the site (texts, drawings, patterns, software etc.) are protected by copyright. All rights reserved.

What exactly does this mean? Does it mean I need to mention (in my blog) that I'm using scrapcoloring as an image editor? I don't really know much about copyright issues, so I would really appreciate it if somebody could explain this to me.

I posted an image below to give an example (the first drawing is the hand drawn one, and the second is the image I get by using scrapcoloring.com...I then color the image (again) with scrapcoloring).

By the way, I only use these images to illustrate the content of whatever I'm writing about in my blog...