I think you may be onto something along these lines. I like the tick on the M on #3. See if you can incorporate a "spray"? I realise that it's hard to explain, see how you go.
This will be the winning logo mate, well done! I've just got to get the "i" right, as it still isn't working for my client.
Can we please see a couple more options (variations) on this logo?
1. Make the "i" in the green - i.e. reverse the circle colours. I'm not sure this will work, but worth a try. 2. Make the "i" a more normal looking font - I understand it's in the circle, but the feeling is that it's being lost. Perhaps a white break to make the "i" an actual letter? 3. I don't know - we need to make the "i" more visible and distinguishable.