Design six graphics for social media posts

I need six graphics for social media posts on LinkedIn and other social media (1200 x 627 pixels?)
The images should have a start-up theme with a diverse range of people and/or arresting graphics. No constraints on photograph, providing it's royalty free, but the target audience is in the West Midlands UK, including Birmingham.
Logo will be supplied, which will also be a guide to fonts and colours.
All images can follow a theme and don't need to be completely different, but different enough!
The text on the images will be (one on each image):

Time to make it real. Why not now?
Will your idea fly? We’ll help you take off!
You need a business plan? We can make that a reality
What’s the next step for your business idea? Apply here!
Growing? We’ll help you grow faster!
Business hurdles; we'll help you jump!