First off welcome to the forum - glad you found us
We are a friendly bunch that is eager to learn/share. I hope we meet your expectations.

This is an unusual composition for me but I like it overall.

My first instinct is that it feels somewhat 'flat'. This is primarily due to the blankish background of the foamcore. To help with the flat feel I might suggest increasing contrast overall.

I very much like the 'mirror' image feel of the left plant versus the right, I just wish it was sharper. I wonder if there was a slight breeze and perhaps that contributed to the lack of additional sharpness.

Hope that helped somewhat,

best!
Marko