Simple 1 clause artwork license (based on FreeBSD documentation license)
Copyright <year> <copyright holders>. All rights reserved.
Redistribution and use of this artwork with or without modification, are permitted provided that the following conditions are met:
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Redistributions of this artwork with or without modification must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS ARTWORK IS PROVIDED BY <copyright holders> "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <copyright holders> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ARTWORK, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Is there a large demand for a license like this? What feature does this license provide that other established licenses fail to satisfy?
--Medicine StormI like the simplicity, but it reads like it applies to the entire work not just the specific artwork used. Needs a 'Portions of this work are...' or 'This work includes artwork that is...' lead-in or something like that.
As for the 'why another license?', I don't think it hurts to have more options or try to discuss what would make a useful license for people.
https://withthelove.itch.io/
The MIT (Expat) license, despite using the word "software", is deemed fully valid when used on artwork. This license isn't perfect, but let's not create more licenses than we need. The TraK texture sets use that license.
The license you wrote does not mention commercial use and selling; it is preferable to clear any confusion when it comes to licensing.