There seems to be an odd "gesture" of an odd thumb trying to keep the container below it from tipping over. But the one that level has another larger container tipped over already. To me these outside floor sculptures are made of an easier moldable material that hard stone or granite, marble etc. But they still appear to have been sculpted by Martians.
More information and url placed at appointed category: "Coming Out Of Or Into Containers". I thing there are obvious reasons they are containers made of the dead creatures themselves! Because if look hard you can see evidences of odd mouths, odd dots for eyes on the walls of these creature containers. But some photos are more obvious than others in revealing these characteristics of creature-containers.
The analysis I use for the photos and imagery are not mean't to be exacting, only to get you closer to understanding that there is intelligent life on mars (martians). Many of the rocks you may think are rocks, are in fact highly designed sculptures, mechanical objects etc.
Nasa is trying to leak out anomalous imagery with out of course talking about it public! Though most images have been doctored, Nasa is trying to humbly and quietly nudge us along with out going too public about it vocally. Though it is work and painstaking effort to find objects in the images that have not been altered in some way!