The text was in the right place, the font didn't really 'match.' So to speak. The color of the font did though.
If you need help on depth, you can check the tutorials section, I think they could help you out.
EDIT: I like your most recent one, the text is pretty bad though, it's hard to read. If you want it to stand out more, put it on the very top and blur everything else a tad bit. If you want it to have depth, erase part of it so it looks like it's behind the astronaut.