That's a pretty subjective question...
If it's for you, and you like it, that's all that really matters.
Personally, I wouldn't buy it, as it's not my taste. I don't know the context, I don't know who they are, etc..
That being said, other people may like it, or even just the style used.
What's important is that you like it and you like making sigs.
I'm pretty new to this as well, and most of my tries don't get picked, but you learn
It's a fun hobby to have, and I wish you good luck!