I was trying to reproduce this photograph inside SD:

Biggest challenge to me, is to reproduce that sequence of eroded lines.
I find myself struggling when I tried to align those lines. They seem to be aligned according to a curved spline (or an arc if we want to simplify).
How to reproduce this very specific alignment?
I tried to use Splatter Circular: I set it non-tiling, set center orientation to true, and tried to increase the radius a lot, in order to obtain a gentle curve, but the problem with the splatter circular is that it has no general offset for the x and y position. So I cannot re-frame the lines as they're are progressively pushed out at every increment of the radius.

Beside the Splatter Circular, I can think of two other ways:
1) Use three or four tile generators to produce a sequence of vertical lines, mask and blend them together, apply different transf nodes to each, offset them and slightly rotate them (brute force, not elegant, but effective maybe?)
2) Use an iterator inside an FX-Map (could be a long and tedious setup and I don't have much experience with Fx maps)
Do you have any suggestion for this specific case?
And more in general, what would be your approach to dispose shapes along a spline inside SD?