Now listening to the longer version of the Lena track, which closes out the first half of the CD, Death of a Gunfighter.
The tune is based on a recurring theme that plays over primarily shifting minor chords. The stanzas are somewhat melodically repetitive; the bridge is nice. It doesn't rise to the level of what say, Mancini or Legrand were doing with film themes at this time, but it is nice enough on its own terms.
As for the rest of the score, if you are looking for jazz or "jazz," you won't really find either here. You get lots of strings, sometimes melodic, more often brooding and dissonant. At least one track reminded me of Morricone; another happier track reminded me of a love montage that may have played in an early-70s made-for-TV movie, with young lovers walking through the woods while gentle sunlight filters through the trees.
There is more jazz content, or "jazz" content on the other score, Skullduggery, particularly with regard to the Mancini-esque passages I mentioned.