Five luminescent heart forms arranged horizontally with varied spectral colorization

Digital render depicting five nested heart structures positioned in linear formation. Spectral gradient progression spans violet through orange-red to cyan-blue across horizontal axis. Each form emits simulated luminescence with particle effects and glow radiating outward. Core centers contain brighter geometric concentrations. Background rendered as pure black surface. Construction employs layered transparency and light bloom techniques. Chromatic emission intensities vary systematically across spectrum range.