AFAIK any content you purchase can be used for commercial renders, freestuff is another thing, some will let you, others will not!  I never get freestuff now that won't let me use them in commercial images!

People do buy stuff, sure!

Charge what you feel your art is worth is what I'd say!

Go for it girl!

Wait for more responses though just in case I'm wrong on something!  [;-)]

 

Injustice will be avenged.
Cofiwch Dryweryn.