So what kind of maps do you want to create, Kagehito? What kind of software do you have or aim to get?
Basically Mapping/graphics software can be apples and oranges in how and what kind of maps they generate. CAD applications like AutoCAD or CC3 are completely different than vector drawing apps like Illustrator, CorelDraw or Xara Xtreme - which are completely different from image editors like Photoshop or GIMP. All these apps are used to generate maps. But how the final map will look will be based on which apps you used to create them.
In some cases base maps are created in CC3, then post-process enhanced using image editors or vector apps - in other words you can mix apps to get the best map you are looking for.
Anyway post early any map work and we'll be more than happy to give you tips and directions on how to improve them or go to the next step...
Welcome to the Guild!