The behavior of the black-hole shadow and its dependence on the parameters in HSW void spacetimes with a quintessential field. In the left panel, δ_c is varied while keeping γ = 0.1 and ρ_s = 0.1 fixed. The middle panel illustrates the effect of changing γ with δ_c = 0.1 and ρ_s = 0.1, and the right panel shows how variations in ρ_s influence f(r) with δ_c = 0.1 and γ = 0.1.