Here's mine.  I used Color blue, Cirlces and polka dots.  

Here's mine. I used the first layout and rotated it.  

Here's mine.  

Here's mine.  

Here's mine.  For the bonus I used a #hashtag stamp and a date stamp.

Here's mine:

 

Here's my layout. The rainbow colors from the photo in challenge post inspired me. 

Hi There!  :) I'm new here and excited to start playing along! Here's my layout using MME.