Several photos are very intriguing but most of these seem to just be rocks. The "dead feline" is just eroded rock, you can see rocks experiencing the same thing in the same picture so it's not unique or unusual. The spoon is rock similar to the "leg" of the "dead feline" that eroded more and simply fell off. Many of the "statues" seem to be just rock with shadows, especially when you look at the raw image. Quite of few of these pictures are "enhanced" so much that it isn't the same picture, there are colors that aren't there, lines that are there and some that are not there, due to filtering and editing which can make the eye see things that aren't there.

I do believe there are things on Mars that have yet to be discovered. I believe it's possible there was an advanced civilization on Mars. I also believe most of these pictures are simply rock. However I think a very small fraction show something waiting to be discovered and we have to find out what it all is.

It's difficult to retain credibility when claiming many rocks are human objects, which that in itself does not make sense. I don't see why an ancient civilization on Mars would have cars from the 80s, motorcycles, a gun, or a wire brush (which is so clearly a rock). If these objects are millions of years old, I highly doubt they would be items from 20th century humanity.

I am interested to know how those square/cube blocks were formed, though. And that triangle carved into the rock is intriguing.

I expect to get some downvotes but unless there are at least two pictures of these objects from different angles, most of them are likely rocks and shadows giving the appearance of statues and objects.