本当に情けないのですが
この前の金ビキニ隠者さんの胸元のほくろを描き忘れていました
紳士にあるまじき失態と重く受け止めております

I am truly ashamed to admit that I forgot to draw the mole on the chest of Recluse in the gold bikini from the previous drawing.
I take this blunder very seriously, as it is unbecoming of a gentleman.