Very nice design!
I've merged a couple threads and brought them both here, since The Marketplace is only appropriate for already-approved, sellable User Content. Your design looks like it could use a little more work to be ready for the game, which should be fairly easy for you to achieve.
If you make your entire decal slightly transparent (opacity 50-70%), you'll solve two issues:
1) Right now, a lot of the underlying sail is hidden. If you make the decal transparent, it will look like it is sewn into the sail.
2) It looks like you have pure (or nearly pure) black and white in some areas of your design. If you make the decal transparent, you won't have to worry about your design being sent back for more work -- your colours will be within the acceptable range.
For more suggestions you can always look at the
2D User Content Guide.
If you make changes and would like feedback before submitting your new design into voting, you can select the "In Review" option when you re-submit. You can use the same [ u c ] [ / u c ] tag to post a preview image, right in this thread! Just put in the new submission number. Then it's a simple click to put your design "In Voting" once you're confident it fits all our guidelines.
Good luck, and happy drawing!