I\'m not very experienced, but to me the whole composition looks really dark.
Noticing that there\'s a lot of stuff still primer black, I\'m curious how it\'ll look if things are brightened up with those. I don\'t really have any specific suggestions on what to do since I\'m so inexperienced, but I think a brightening of the rest of the composition might do the trick.
Also since your focus is an imperial navy pilot turning to chaos, perhaps the chaos emblem might should be your focal point.
Again these are just amateur suggestions, but you seem like you\'re screaming for help so I thought I\'d throw what I had out there.
