Experimental model, based Cardinal Crimson Promotion, Triaina, etc. I love DxD, so I created this and am hoping it will give the results you desire.
Add in for negative tags: Dragon, extra characters. Otherwise it may try to add in a dragon into the background or an extra sacred gear.
Also, you should be able to make the wearer have no helmet as well, and use this for female characters as well, which in that case add:
Armored Breastplate, Large Bust (or whatever size if female, don't worry, it won't be NSFW). You can also add in Armored Skirt, Bare Thighs, if you want a Skirt type Balance Breaker, true to the Light Novels.
If you like the results, please like the Lora, as I plan to create more authentic DxD Loras! Thanks!