Don't ever forget that your photography is all about you, as the artist, and whether you like the image, or not. WM.44's message is right on, particularly the part about "practice". The more you practice, the more you will learn what works and what doesn't. In your second shot, the "saturation" is too much and doesn't work, as you figured out. Regardless of what others say, or think, don't ever be afraid to try something "new" to see what it does for you and your images. If you think that HDR is the way to go, then try it - it may, or may not, work out the way you had hoped. Most of us, in fact, I would guess that it is "all of us", have been where you are today and we got better by practice and experimentation, and asking for feedback from others.
I don't know where you live, but if you are anywhere near a major centre, the chances are there might be a technical college or a university that might offer courses in photographing various subjects. Alternatively, find something you want to learn on the web and go for it. There are a plethora of courses, long and short available to anyone who wants to go and learn. As well, there are books and videos available on just about any aspect of photography you would care to name.
Keep on posting.
WesternGuy