Welcome to the Guild jturner! To post a pic you can just use the "Insert Image" button/icon in your editing toolbox (see the image below). Glad the tutorials were helpful to you though, I remember having the same experience when I first came here. To answer your question, it's helpful to have a variety of skills in your toolbox when doing cartography. Some tutorials here do not require a lot of artistic talent to produce a decent looking map. Others do. As to cartographic knowledge, for very simple maps you don't need to be an expert. However if you wish to strive for accuracy, then at least some knowledge is essential. I'd recommend just practicing with more maps. I think you'll find that you will tend to pick up both the artistic and the scientific aspects of mapping as you go along.