remember that scene back after the 100 man fight... where guts is looking over the army encampment... well,do a color with with the brand in the campfires..
Im not very good with working with high quality images (i say not good with high quality because i use to make my own graphics for video games but they only had snes graphics still most people made graphics that looked like crap) but if this helps i suggest adding some red/orange so it looks more like fire