DA's having its fits, so I didn't get to see the rest of your gallery yet.
Epiphany28, DA can be fun, or it can be frustrating. I think the most interesting thing about DA is some of the collaborations I've seen. I've seen a lot of people get frustrated, as the socializations are ... curious. It can be hard to be heard in all the noise. There are a lot of gifted artists out there who get very little acknowledgement simply because of the sheer numbers, and I think that gets frustrating.
But then, when your work does get recognition by thousands of strangers, it's hard to deny the overwhelming feeling that you've made a connection...managed to say something worth listening to.
I find it's a great way to back up ones' art...and put stuff up for consumption by various circles of friends and acquaintances easily; you can point them all to the same place. And it's a GREAT place to find inspiration.
You should upload a couple of pieces, and see what happens. As with anything, if you go in with very low expectations, you're not likely to get disappointed, and you might find someone to bounce ideas off of, expand your visions.