Say AHHHH

I know nothing technical about photography. Well, I did take a class in college where I learned everything from f-stop to developing my own b&W film... but I think I've quite forgotten it all. Actually, I just want to know what you think about a few photos. I want a SLR- and I'm looking at a Canon EOS Elan 7 and a Nikon N80... but I don't want to invest if it isn't really worth it. I want to improve the photos I take of my new son, Isaac. But, I also love to take landscape photos. Should I invest? I don't know if my compositions are worth it. If these pics are crap then tell me!