Dropped from Google?

[weddingphotojournalist]

My website www.weddingphotojournalist.co.uk appears to have been penalised by Google. I ranked fairly well for a number of venue related searches from my blog posts. Generally I'd find myself somewhere on page one or towards the top of page two.  However recently I found I am nowhere to be seen for these venue searches. I still appear if I search for my name, business name and keywords in my domain name.

A quick check of Yahoo and I found I am ranking very well, it is only Google who seem to have dropped me.  I looked at Google webmaster tools and there are no messages or clues as to what has happened. However it does show my traffic dropping off a cliff edge on the 19th July from 850 impressions to around 60 to 70 per day.

I haven't made any changes to my website recently and hadn't added any new content in July. I haven't added any new inbound links either, a search for inbound links does not show anything suspicious.

Can anyone shed any light on why this might happen?

[StreamlineMetrics]

It's hard to say without knowing exactly what's been changed on the site/inbound links, but I wouldn't be surprised if it had something to do with the backlinks... this graph does not look normal and it appears a lot of backlinks have disappeared in July - https://ahrefs.com/site-explorer/overview/subdomains/?target=www.weddingphotojournalist.co.uk

Edit - make sure to select the "One Year" tab for the graph