spotting/photography Kiev

[Caravelle]

Next week I will visit Kiev for some sightseeing, plane spotting/photography and a couple of flights with Motor Sich Airlines (Antonov/Yak) airplanes from Kiev (IEV)/ Zhuliany to Zaporizhia (OZH) and finally to Minsk (MSQ) in Belarus.
I am most of all interested in Zhuliany(IEV) airport about photography. Someone told me to climb in some trees to take pictures of stored/wfu Antonov/Yak...... airplanes. I know about the museum which I will visit anyway.
And what about Borispol, Gostomel and Svyatoshyn and others?
What are the do's and dont's and what about security/police?
i am not looking for trouble but sometimes I am not so lucky

All information is welcome.
I wrote a couple of emails to Ukraine spotters but the information I received wasn't that much.

Andre'