Hmm, 
My Oga, this is very unnecessary and also quite unkind of you.

I understand you are trying to tell her to be better or something, but all you have done here is belittle her and demean her hard work. It is unfair.

You could have made this a teachable moment for her and others who seek to learn from you. 
You could have gone to her behance page and see that while there are obvious faults in the design, the presentation was the main culprit here. 
You should also understand that She is a work in progress.

I am always laying emphasis on being kind -   because Tech is already hard, don't be the reason someone quits. 
Everyone's emotional threshold is different. What may be banter to you might be replaying every minute in someone's else head, fueling their insecurities and imposter syndrome. It is sad.

Let us all practice the empathy we yap about in our case studies. It is too early for all this gidigbo. Let us be kind, plus it's not like every single one of your own work follows BASIC design principles, but then it's all good.
Principles are to be bent, and rules are to be broken.

It is well 
🫶❤️.