nice picture, beautiful shells. Great tittle too. However, you may want to adjust the DOF so that everything else is blurry except the star in order to draw the attention to it.
Nice colour and focus here. As I'm sure others will say - you somewhat over did the border. I think a solid colour (white, black) may have looked better.
The variety of the sea gifts makes this an interesting photo. The colours are nice and soft - realistically looking. You have some lovely textures. It needs tiny bit of sharpening, but my biggest suggestion is to really stay away from thick brown borders. This border totally kills your beautiful shot. I am not taking any points off for it, but IMO it doesn't add or help your image, it distracts from it. Perhaps thinner cream-coloured border would have been a better choice.
I wish I could the black object a bit more clearly in this photograph. It also might work better with less... less might be more in this case with composition.