There is information of such an attempt by Kampfgruppe Kienast in Saxony to modify T34 with a Flak88.
However, there are no photos of this 'thing' and the only info we have is through veterans describing it.
The image you link is just one of the many impressions of how it could look. It is too high compared to the compositional sketch that was done after the war based upon veteran interviews.
I prefer to stick to real things
: