Make two (or more) abstract sculptures:
One only made of the bezier curve bevels
One only made of extruded 2d shapes. The shapes can be imported as svgs or created within blender.
– Make sure the curves are imported correctly in the engine (if necessary convert the curves to meshes)
– Stay under 100K tris for each of them
– You can use modifiers
– Produce correct watertight meshes (no holes, no self intersecting surfaces)
Stuck? Look for inspirations on same.energy