Cool looking frog. I like how you have the branch as a diagonal in the frame. That adds dynamics to the composition. I might suggest a polarizer to cut down on the highlights and a bit of fill flash would have been good hear. Even the pop up on the camera with negative exposure compensation (if that is possible with the built-in flash) could be employed.
Hey, Juan! I like your subject - love the diagonal of the branch and the frog is nicely in focus. I do think he's a bit centered in the image and the light is a bit harsh. Not a bad image at all but next time watch the reflection - critters that are normally wet are notorious for bad lighting!