These are good but you need to relax on the split tones. Keep working on your stuff, it's more about the subtlety than overbearing visuals
I disagree actually. I like the feel that these pictures express.
I agree with eyeone; I think the degree of cross-processing that is "right" for an image is hugely dependant on the viewer's personal taste, but to my tastes you've done the split tone effect pretty deftly, and they evoke an image of a warm afternoon taken from memory
if I had to offer some critique, I'd say that the split tone ones where the skin tone stays closer to the actual tone are the ones that are more successful; the further you get with skin tone into the magenta or green the more resistant the mind is to accepting the photograph.