create 2 flyers to advertise on FB and Instagram

I am seeking the creation of two professional flyers to promote, on Facebook and Instagram, two Calls for Papers for a conference I am organizing. I will provide the images to be used in the advertisements, as well as reference models. The text to be included on each flyer will also be provided.
The objective is to produce two visually compelling and attention-grabbing flyers that effectively communicate the Calls for Papers while maintaining a polished and professional design suitable for social media promotion. I need this job done immediately.