darkavey, arthur pendragon (fate), arthur pendragon alter (fate), fate/grand order, fate (series), highres, 2boys, ahoge, armor, armored boots, artist name, back-to-back, black armor, black hood, black shirt, blonde hair, blue shirt, blue sky, boots, breastplate, castle, closed mouth, cloud, cloudy sky, day, dual persona, european architecture, excalibur (fate/prototype), faulds, full armor, fur-trimmed sleeves, fur trim, gauntlets, green eyes, hair between eyes, hand up, hands up, holding, holding sword, holding weapon, looking at object, looking at viewer, looking down, male focus, multiple boys, pauldrons, pelvic curtain, shirt, short hair, shoulder armor, sky, standing, sword, teeth, v-shaped eyebrows, weapon, white armor, yellow eyes