My logo was starting to look a bit unclear and untidy and so I have decided to refresh this and produce a brand new logo based loosely on the old logo. I want the new logo to be relatively modern, say who and what I do and also have an interactive side/an element that changes every few weeks (a bit like what google do on their home page) Based on some Facebook feedback and the input from a graphic designer I have produced a range of concepts. Over the next few days I will take one of these concepts forward and start to use it as my new logo. Below shows some of the concepts that I have produced.

Which logo to use?