They look too contrasty, but they also look like they were shot on a very harsh sunny day. That itself will give too much negative contrast, even if you are developing correctly. Reducing the developing time by 25% and giving one stop more exposure (the reduced developing time lowers contrast but also reduces the film's effective speed by a stop) will give negs in those lighting conditions that are easier to scan (and easier to print in the traditional way if you ever go for a darkroom).

As far as the scans looking too light, keep in mind that films scans usually look too flat and sometimes too light. That's just how scanners work. You have to edit the scans to bring out the normal tonality. Use Photoshop or Elements or whatever you like to work on photos with in the computer. See my tech info webpage for examples of that.