Hi ArtOne here are my comments: Entry #4: Like the text styling but no so keen the logo imagery on this on. Entry #5: Would prefer to see the logo with a bit more shine, more of a platinum feel to it.
Entry #7: This is now my favourite out of the ones you have created. I want to step away from dark colours. The other things I want avoid is the logo looking too dull because of the grey/platinum. Use of light bright colours is important. I would like to get a feel of partnership from the logo symbol.