Care about FreeArt? by drew Roberts is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
If you care about Free Art it might make sense to give as much of your attention budget as possible to those making it. Make it a non-zero amount.
Your attention includes promoting it to others.
Some of your monetary budget might be a good idea too but I figure your attention budget might be more important.
If you prefer to think of Free Culture or a subset such as Free Music, cool.