Thanks! And hopefully the other artists will be credited too ;-) 

Yes to both, if by hatch you mean as below. Currently-planned additions to the ship: gunports (animated), anchor, steering wheel, coiled ropes, crow's nest, quarter gallery, jacob's ladder, fancier railings (done), grated deck hatch (done), animations for moving through water

Forgot to mention that castelonia also commissioned a freestanding cannon which is already completed (though these GIFs are missing a shadow for some reason). 

Some authors have agreed to license their contributions to the base assets under CC-BY and to waive the DRM clause (i.e. license their contributions OGA-BY) : https://opengameart.org/content/liberated-pixel-cup-lpc-base-assets-spri... . 

FYI, CC-BY also prohibits the use of effective technological measures (i.e. DRM), just like CC-BY-SA, see https://opengameart.org/content/lpc-revised-base-object-kit#comment-91914

FWIW, my personal opinion is that distributing the art in readable/DRM-free form alongside your executable should satisfy the rules of the CC licenses, even if your code is closed-source or otherwise uses DRM. For example, include the assets in Program Files alongside the executable (even if the executable also bakes the assets) or if that's not possible, include a prominent link to download a tarball containing all the art assets. The license only precludes you preventing others from exercising their rights (i.e. to adapt the artwork), so as long as they can still readily do so, there should be no restrictions on how the executable itself is structured. This is not settled case law, but it stands to reason. By analogy, nobody understands the GPL to mean that your executable must contain the uncompiled source code... just that the source can be accessed by anyone who wants it. 

Obviously Eliza and others have a different interpretation, and this has been argued extensively elsewhere on the forums.

Hi all, a few updates - 

1. I am adding some additional items for the ship tileset (crow's nest, jacob's ladder, railings, quarterdeck, some accessories); this will require a little re-organization. Since it's been a pain to keep this organized but still usable, I'm going to hold off a little bit on releasing until these items are done. I'm sure it will be worth it :) 

2. I am nearing completion of a large and often-requested tileset: ruins and dungeons! Commissioned by pvigier (thanks!). Includes complete buildings, ruined walls, pillars/columns, staircases, and statues. There are two versions: desert and jungle; both have the same basic layout and elements. All tiles are 100% original, but will work well with the existing sets like the adobe town, ancient greek, and ancient roman tiles, as well as some statues from here. 

I may also use this template in the future to build ruined castle tiles for more generic ruins if there is interest.

3. I will try to get around to releasing the blacksmith and tools packs soon! I had to re-organize some of the tiles so need to re-make the preview...