Venus looks so big and bright at night, then in the photo so tiny and insignificant. Normally I wouldn't recommend object substitution in a photo like this, but in this case a suggestion: If you have enough Venus detail in the original image, or another image with greater magnification, could you try pasting in a magnified copy of Venus where the tiny image of Venus is now? If it's from the same original, or at least a comparable image from the same shoot, it shouldn't be too much of a no-no alteration. Just don't make it so big it looks fake.
Other than that, the photo looks great.