Please read this journal from our friend !EveLivesey (https://www.deviantart.com/evelivesey)
I must just add this precision: You may use stocks from flickr, but you MUST choose pictures selected into the "Creative-Commons" and "Modifications allowed" folder. Then, you MUST give the name of their owner. This rule is available for all the stocks you choose: always control the licence of the pictures you use and always credit their owner.
And, of course, YOU CANNOT REPACKAGE THEM AND REDISTRIBUTE THEM AS STOCK: it is a theft!
Some useful links:
Not just the models.
Often times I will see DD suggestions with credits, but only the model image is credited. That is not enough.
If the other resources are you own and or purchased you can simply say that in the description. Or else the piece will be ineligible for a DD.
Otherwise respect the DA stock artists and give credit where credit is due. They are invaluable and the PM community would not be nearly as strong without them.
Don't believe me? Go take a look at the prices on premium stock sites, now go look at the variety on other free stock sites. Then come back to DA and be grateful.
This is just a quick reminder. Thanks for all t