Nice.
Make the text less blurry, remove the white outline around the mantis and correct the mantis' antenna and the highlights on the mantis' abdomen. They seem to not fit.
And something is wrong with the background. The trees look like parts of them would be floating in the air. It contradicts a little with the sharpnes of Vault Boy and the mantis, even if Vault Boy seems to be a little bit too transparent.
But still well done.
7/10 because of some flaws.