I would require an image of at least 1400 x 2000 pixels in PNG format and a PSD with separate layers. Based on the last sample you supplied to me with the following corrections -
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1. See the entire globe and ribbon effect
2. Needs to be a proper sphere and look bluer like the rest of the image
3. Ribbon needs to smoothly curve from globe to globe, fading as it does so
4. Remove squares and part of ribbon here
5. Keyboard needs to blend a bit better and look more like the example to the right
I would then require you to add the text for 'Accounting and Stock Control', 'Point of Sale' and eCommerce along with there images.