Anyone know Alexandr Bondar?

I've seen 1:50 models of unusual WW1 and 1920s vehicles by a Ukrainian (?) designer Alexandr Bondar. I haven't been able to figure out if the models are released as free but it seems they may be.

If the models are free, I'd like to offer free hosting of his models on Landships II but I have no way of contacting him - anyone know this designer and how to contact him?

Regards,

Charlie