I love the composition. My daughter has the same ducks. Exposure seems dark at the top left, and also out of focus in the same place. Lack of DOF? Ignore the next comment if your bath is an ivory colour - the white balance doesn't seem right. Niggle - there's a black dot near the centre
This is a really cute and well thought out idea. Love how the baby ducks are using a tied towel to 'escape' their white porcelin 'prison'. You paid attention to some details as that the position of the Mommy duck looks as if she is looking on as her babies make their breakout. The biggest critique I have on this photo is that the lighting is very poor. Either tunstun lighting from bathroom fixtures or not sufficent lighting was used. Tungsten light is the kind produced by ordinary incandescent light bulbs. Typically the picture will have a yellowish-orange-brownish tint; the same result can be had if you use insufficent lighting. The problem with that is that the white of the tub gets a yellowish cast. The rubber duckys appear more orange than yellow. Because the tub is not a bright reflective white the vibrancy of the yellow tones in the duckies is lost in the dull colors of what could have been a bright white background for them to visually 'pop' off of. The question becomes how does one overcome this problem without resorting to flash which could result in harsh glare bouncing off the plastic of the ducks and the tub. One suggestion is if the bathroom has a window to let in as much natural light at possible to counteract that yellowish-orange tinge. If there is enough natural light then try without the bathroom lights. If there is no available window then possibly experiment by bringing in another type of light source that may counteract the tungstun. I am not sure but if you have the function of a white balance setting on your camera you might want to check the camera manual and see if that helps. A last suggestion is that utilizing Photoshop/Paintshop can help to remove a color cast or unflattering tinge. There are quite a few good tutorials on lighting and color cast removal here at DPC. Just one that might help is //www.dpchallenge.com/tutorial.php?TUTORIAL_ID=24 or you can check out the list //www.dpchallenge.com/tutorial.php .
Hope this critique helps. Oh, and a last helpful suggestion is that the water could have a punch of color to it to add even more visual appeal. A bathtub color pellet could change the color to a cool or even deep blue - yet another color for the yellow hue of the duckys to 'pop' off of.