This is amazing! Koi looks so majestic and beautiful! I also love the colours, green and blue are my favourites! I can't stop staring at this, seriously, it's amazing. It looks as if he should start moving and swimming to the top. x3
Oh also, I edited my form in the shop with a sketch form, since I saw that lined fullbodies were closed, but since you were kind enough to take it as a fullbody anyway, should I edit with the proper form?