So wish I could use photoshop

I have photoshop elements on my computer but I do not have the time to work out how to use it. 
the sky was just blue when I got home from a full day and evening at work today and as I walked out to take a shot of the moon a flock of seagulls flew past - and got a nice shot of them against the darkening blue sky. Then I took a few shots of the moon against the blue sky but of course in order to get the sharpness of the moon the settings are such that the blue sky is obliterated. Now if only I could have merged the two shots together