Instagram branding template

Job ID: 33442829

Budget: $10 – $30 USD

Hello there
I'm setting up a new Instagram account for my business ( travel app)
My strategy is to create posts based on a certain category for a certain city ex ( Paris: food and restaurants / Rome: top 10 attractions etc..)
I want to create a general thumbnail for every post (like a watermark) that can expose / identify my brand.
The thumbnail post will contain
Logo ( refer to attached image )
Name of brand ( Vagant)
City ( ex: Rome)
Category ( ex: Architecture sightseeing )
Picture related to the category (ex: Colesseum)
As you can see the city name, category and thumbnail picture will be constantly changing but logo and name of brand will remain at the same position though the positions of all these details must be similar in every post.
Questions to think of
How will it differ from a city to another regarding color of text ?
Filter / contrast of thumbnail picture?

I have attached a fail tryout but can explain much of what I have in mind

Thank you
Related categories: Graphic Design Logo Design Photoshop Branding Instagram