Good job with what you've done so far, however, if I'm being brutally honest I don't think its enough for mason yet. Don't be disheartened, though, as everyone starts somewhere. Try planning a build first, get some inspiration from the internet, think big, and impressive. You can never spend too much time planning as it will almost always show in your builds.
I've listed some links at the bottom to get you started, but by all means don't just pick the first thing that pops up, search for a while until you find something completely breathtaking. Alternatively, just build from pure imagination but I find some form of inspiration a big help.
http://tinyurl.com/7sb8lbc
http://tinyurl.com/6lzxp8k
http://tinyurl.com/7nrgp3t
Good luck, I look forward to future projects.