Nice tow line.
The only thing that puzzles me is, why have her builders (i.e. Mützelfeld-Werft, here in Germany, according to Shipspotting captions to the odd five photos of FLYING KESTREL posted there)
decided to mount the towing winch at an angle of abt. 40° (as it looks to me) from the right-angled to the center line position, which seems more natural to me?
With that inclined position I would think one always has an additional sine traversal tow force component (when the tow line is aligned to the tug's centre line) to account for.
Were the builders restricted in free deck space?