import colorcet
expr = z**5 + Rational(1, 10)
l = 2
plot_riemann_sphere(
    expr, (z, -l-l*I, l+l*I), coloring="b", n=800,
    riemann_mask=False, axis=True, grid=False,
    cmap=colorcet.CET_C2, blevel=0.85,
    title=["Around zero", "Around infinity"])