Sketch a small central point for the blast core
Draw jagged, irregular shapes radiating outward
Add larger cloud-like forms around the core
Extend sharp flame spikes in multiple directions
Layer smaller bursts between the larger shapes
Vary the size and spacing of the shapes
Add debris lines and fragments flying outward
Use curved edges to suggest smoke and heat
Darken the center for intensity
Shade the outer edges for depth
Add motion lines to emphasize expansion
Refine the silhouette with uneven contours
Ink or outline the final shape clearly
Color the core bright yellow or white
Blend orange and red around the center
Add darker smoke tones on the outer areas
Highlight edges for a glowing effect