Well... i've changed my mind. I will submit this pic as i think it will make a better impact:
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I've removed the dead samurai on the floor that didn't look so good, i reconstructed the foot on the second standing samurai, added some sun,
added some blood, ignite the arrow, added some water drops to improve the waves, some blurs and motion blurs, filters...
Here is my original pic:
Spoiler Alert, click show to read:
Thank you again for inputs. More advices how to improve it are always welcomed.