My first attempt at DAZ. It's bad compared to your cool work, but I still like it
You'll be fine. My first attempt was less than 2 weeks ago, and I was very hesitant to post anything here. I'm still way behind the skills of many of the people here, but getting better 'cos I learn new things about the Daz Studio every day. So will you. But be prepared...it's like the answer to the old question, "How do you eat an elephant?". Answer..."One bite at a time". Initially DAZ seemed overwhelming to me. It's a HUGE elephant of options, settings, etc. Take it one bite at a time and you'll be making great renders before you know it.
Hint: Open the Environment tab, select the "background" option, then mouse-click on the "color bar" that has the 3 numerical settings on it. It will bring up a new pop-up window where you can change the default "transparency background color" from the white in your render to any color you want without needing to know the numbers for the color (use you mouse to point somewhere in the color grid, or drag the "slider" up/down on the right side of it). I accidentally found that method 4 days after starting to use Daz. It gets rid of that eye-scorching all white background and can use something easier on the viewer's eyes like a dark grey one. It also makes the model stand out better color and lighting-wise, etc.