  We perform an exact-diagonalization study of quasihole excitations for the
two-component Halperin $(221)$ state in the lowest Landau level and for several
$\nu=1/3$ bosonic fractional Chern insulators in topological flat bands with
Chern number $|C|=2$. Properties including the quasihole size, charge, and
braiding statistics are evaluated. For the Halperin $(221)$ model state, we
observe isotropic quasiholes with a clear internal structure, and obtain the
quasihole charge and statistics matching the theoretical values. Interestingly,
we also extract the same quasihole size, charge, and braiding statistics for
the continuum model states of $|C|=2$ fractional Chern insulators, although the
latter possess a "color-entangled" nature that does not exist in ordinary
two-component Halperin states. We also consider two real lattice models with a
band having $|C|=2$. There, we find that a quasihole can exhibit much stronger
oscillations of the density profile, while having the same charge and
statistics as those in the continuum models.
