OK, my 2 penneth worth...
Your web site - all pictures and no info. As much as photography is about pictures, it is all about you as well. YOU are the BRAND that is being advertised and the service being offered. As much as I like the pictures, and the locked galleries to indicate previous commissioned work - you definitely need that bit of reading material.
As you say, a work in progress - so leave the web site there.
Where to go next:
Kit wise - i see you only have the one body - for me a second body is essential. You are being hired to guarantee the delivery of pictures - and if that one body breaks, then your rep takes a hit. You can get a way with losing a lens by use of another, although not as suitable as that which was lost. Lighting i also something to have redundancy, so one flash isn't enough - and nor is ISO 25600.
The Macro lens is nice - i used mine for portraits - loved the bokeh you could get with it - but do you already have redundancy in the focal range area? What will the lense give you that you haven't already got? You'd be surprised how many butterfly pics are taken with long lenses - saves you getting close and disturbing them - even if butterfly pics do make a good 'stocking' filler
Photography as a living: as said in another comment - you have to work out where you want to go with your photography as a revenue stream. With that you need to get a business plan, and even marketing plan sorted out to help you decide if what you fancy is achievable.
I can take pictures, and have had all the kit a pro could want - but i just couldn't handle the pressure of 'the event' and delivery, my wife said i set standards that were just too high - who knows, it's done. My photography has now been stripped back to basics and basic kit. I'm adjusting my web presence as well to suit.
I hope you sort out your aims re- photography and wish you all the best, look forward to seeing you on the front cover of a tog mag.