The ones I see are almost where you marked just a little off. The first big one in the circle, seems to be wearing a robe type garment, very flowy. I can see his feet touching the steps and his arm out in front of him as if reaching for something.
The second one, behind the top pillar is shorter and smaller and a little harder to see. It's actually harder to see with the circle drawn around it, but I can still see a head and arms, though the bottom part gets lost behind the pillar.
I also see somethign in the area you circled but I can't be sure what it is.
** Both my kids saw these ghosts I saw as well.
