I don't much care for the second one but I think the first one has a lot of potential and is definitely a good start.
This image looks basically untouched from the camera. A few things you can do to improve it are straighten the horizon (look at the water line in the background), brighten the image up, crop out the edge of the building on the left and give it a bit of a saturation boost.
Here is a quick example...
[attachment=17933:image73_modified.jpg]
Brad makes a good point. These two images have some baseline potential, but they both need work. Since he did such a good job with the first one I thought I'd knock the second around for a few seconds... I should have removed the branches from the lower lef, but anyway.
[attachment=17943:image28_1.jpg]
Photoshop can be a big leap if you've no experience with it, but Lightroom is pretty easy and there are enough tutorials available online to keep you going for a long time. Start with Michael's store!
Mike.