Multi Platform Social Media Graphics

I need a skilled graphic designer to create a cohesive set of social media visuals that look equally strong on Facebook, Instagram and Twitter. The goal is to give my posts a professional, on-brand feel while making sure each image meets the exact sizing and display guidelines of the three platforms... (Budget: $250 - $750 USD, Jobs: Business Plans, Content Marketing, Ionic Framework, Photo Editing, Photography, Product Sourcing, Project Management, Proofreading, Telemarketing, Video Services)