About mixamo copyright question

Hello.

Can I use Mixamo characters and animation for making illustrations and comics?

All animations of Mixamo have great expression.

I'd like to use them as references for drawing action and studying character animation.

But I was not able to find the term about adaptations of Mixamo images.

My plan

At first: Making images of character actions on Mixamo. 

PlanA)

Drawing original characters with watching these images by other painting software.

Just references.

PlanB)

Adding lines on images and changing shapes to other characters by other painting software.

Both of Plan A,B are OK or not?

If you know answer, please tell me.

Maybe my English is too bad.

Thank you for reading this question!