I responded to your other thread as well, so I'll take a crack at these.
1.) Watch your white balance. Some of these have a color cast. Casts are fine depending on the mood you wish to convey, but the key is to be consistent (especially with the same location and time of day, i.e. IMG_1667 and IMG_1696).
2.) It's a minor thing, but renaming the image titles goes a long way. It also helps with the whole "where did the 29 shots between these two images go?" questions.
3.) I agree with the other posters, the selective coloring is overdone.
4.) Watch your composition (chopping off limbs) and focus (the little girl can be a handful, but she's the center of the family and should be your focus, metaphorically and literally, for most of the shots. IMG_2363 is a good example).
5.) Av mode is not the answer to everything, especially if you're new to the technical side of photography and, more specifically, metering. Bear in mind that if the light is not changing, then M mode is far better for maintaining consistency between shots. A lot of these have great poses and good framing, but are a little too underexposed.
6.) Related to the above, shoot in RAW if you aren't already. A good homework assignment is to read up on what a histogram is and how it can help you to judge exposure. This works both when using the camera and in post (Lightroom does this very well). This can help fix shooting errors, although the obvious goal is not to make the errors in the first place.
7.) When shooting people, be careful of backs. Examples include IMG_208 and IMG_2382. A great bit of the emotion is lost in the fact that you can't see the child's face, and it really hurts the shot.
8.) Similarly, EYE CONTACT! IMG_2147 is a great pose at a moderately interesting location, but the lack of the girl's eye contact is, again, hurtful. I know it can be tricky, but there are indeed ways
(even so, culling should be the last step).
9.) Watch your backgrounds! Besides the obstructions of her face, the one thing that kills IMG_2225 for me is the big red stripe/wall in the background. By changing that one detail you can completely change the perceived environment. If it's a building in the background, then she's in a garden box in a city. If it's a forest (or blue sky) in the background, then she's free in the countryside. That one little detail can make or break an image. Search "photobomb" in Google for more examples.
10.) Don't be afraid to mix it up from the standard posed shots. IMG_2366 is a good example. Similarly, don't be afraid to go closer. You don't have any close-up headshots, which would help show them as individuals as well as a family.
11.) Break up shots in the series (this also reflects the naming issue) so that things don't feel so familiar. IMG_2385 and IMG_2403 reflect this. The poses are fine, the similar location is what it is, but having the two images right next to each-other leads me to compare them to each-other, and not the series as a whole.
12.) Culling! Trim down what you don't need, what doesn't make the cut, what is duplicate, etc. IMG_2403 is fine, though IMG_2423 is very similar but brighter, in focus, and more expressive.
All of that being said, you have some great images tucked in there. In no particular order, IMG_2570, IMG_1696, IMG_1816, IMG_1934, IMG_1980, IMG_2049, IMG_2458, IMG_2489, and especially IMG_2473 stand out. Keep shooting!