For a seascape, the colours are a bit dull and flat. Also, with no symmetry between the top and bottom halves of the image, the horizon should really be moved off center (and straightened) I think. Exaggerate the perspective next time by getting lower to the ground and either pointing the lens slightly toward the ground, or toward the sky.
Good beach shot, though it is largely without a solid focal point to my eye (I know, Waldo is the focal point, but not really in visual terms); even the lines here seem to run contrary to each other to a bit (the log points to a point on the shore that doesn't quite yet turn a corner, for example). Lighting is sufficient, and it suits the purpose of providing a puzzle in finding Waldo, but it does not reach me as an image on its own.
Well I keep thinking I have spotted Waldo and then I look again and I am not so sure. Is it that speck in the ocean? Who cares this is a wonderful shot of a beautiful beach
This looks like a beautiful place, and if the log was just cropped off, it would be an outstanding composition. There does seem to be quite a bit of noise, though, especially in the sky.
I can only assume that one of those pixels is a person somewhere. Something to think about is the rule of 3rds. Put the horizon 2/3 the way up your image, and keep it level. It helps to balance the composition better.