Wow, you're off to a great start!

In my experience, the best way to increase the realism of a dream is to shout out commands like "increase clarity," "increase realism," and the like. Sometimes, you'll have to shout it a few times, but it should help. "Increase Lucidity" can help if you don't feel as though you're fully conscious, and will often make the dream clearer as well.

Have fun! 8)