good start Steve. To be honest I don't tend to think it always matters that your name is clearly represented in the symbol of a logo, a symbol is a recognisable element and I would say that the symbol you have produced is pretty good. A few things that I would recommend changing how ever are 1 the font, doesn't really tie in with the shapes of the symbol, and 2 personally I think it would look better if the edges of the symbol and the wording were aligned so the text isn't "hanging over".
Lastly, perhaps you could try a few different colours. The green works but it might not be the best, just think about the logo long term, how it would fit in with the various medias it would be displayed in.