Hi juan . I think as an illustration it looks preaty good. I agree with previous guys about composition and separation but its minor things overall the picture looks solid.

@Juan Pedro Ramos Ponce Here's What I have to say about your piece. I hope it was helpful. Btw, Loved your piece! Great job! PS Next time you ask for critique just check the ' Post as Help Request' box so I can directly comment on it. Anyways have a good day!

I really like it. The only improvement I can see is to add a block to the viewers eye at the bottom right. Maybe a tail of one of the monsters curving around and under the boat. This would keep the viewer in the picture plane more. I like how the people and the mast of the ship are pointing to the action. You have a good overall shape to your composition. If you look at the book I pulled off line thanks to google you will see a definite figure 8 composition. This composition does a great job of keeping the eye into the action all over the image. Hope that helps! Great work!