I grew up in Bradford, Yorkshire, and attended schools where a large number of pupils belonged to parents of Eastern European descent. These included Poles, Ukrainians, and Czechs. In general I have found Ukrainian names pronounced pretty much as they are written, with the posible exception of a W sounding more like a V. This I suspect is in part related to the fact that the names written originally in Kyrillic script were converted phonetically to the best sounding English spelling. There are some anomalies, for instance the (Male) name Karl which is also found spelt Carol, but pronounced Carl.
I would expect to pronounce Kryskiw "Chriskiv" with the first syllable somewhere between a soft and hard "C" sound (a bit like in Christmas).
Quack!
Geoff the Duck.