Artwork for website

Information for the business: Media website
Industry: Publishing/Journalism
Design details: I need two designs for my website which is under construction at www.ppest.com, to go in the boxes top middle and top right on the home page as backgrounds for the text.
I would also like to use the said designs on social media sites.
I enclose an illustration of what I would like below for the first image, the supplied designs to be merged into one. I have more I can send the chosen artist.
I love the "global energy" picture below with the globe, and the silouhettes around it at dawn. I would like to make something similar, in the same colour tones, with a semi (half) globe rather than a full globe. The half globe would take up the lower half of the image allowing us to put text over it, and it would have a hint of the globe in the Sappest logo which you can also see on that web page ie the countries in grey relief.
The existing silouhettes in that picture would then be replaced by media silouhettes. Examples supplied and more can be sent. Reporters, cameramen, guests, soundmen etc.
That would be for the top middle box on the home page. For the top right I have an image of a master control room. I would simply like to put it in the box, but to facilitate writing being imposed over it I would like it to have a smaller rectangular scree/mask over it, where we could put the white writing. We were thinking of a scree box like that at www.redtribe.org or www.drum-cussac.com.

Bests, Sarah.
Ideas for the visual style: see below
Extra notes: