Get lightroom 3 by adobe! It is the dogs crystals! Every time someone at work asks me about taking photos, how to work their cameras, what ever, i always seem to go into a sales pitch (for which i obviously get nothing out of) about lightroom!
First off - shoot in RAW, not JPG
Secondly - get Lightroom 3!
When you take as many photos as i do, it is just amazing how much simpler it makes your life! The way to think of it is that it deals with the inporting, filing, sorting, printing and publishing of your photos. On top of that, the 'developing' section allows you to make global changes to your photo, where as photoshop would be making local, small changes to your photo.
As for your photo, it is a good subject, but just framed a little off i think. And its over exposed (too bright) which is what has been mentioned before - look at your histogram will help you with that. This object is clearly near you, so you can experiment. Rather than just walking closer, try different things - get low, shoot up, shoot down, take hundreds of photos! Then, when you get to your computer (using lightroom of course) go though and be a harsh bit@h on your photos. That 'delete' key becomes your friend! Keep AMAZING photos, ditch 'ok' ones. My opinion of course! IMO, you should only have one photo of each thing. One photo should make you think 'thats the one'
My advice for this photo - the object is that purple bud, right? I bet it has great texture and loads to look at. So bring the focus into it....i dont mean 2 steps closer, i mean fill the frame!! Keep what ever else is nice in there, but have a bud as the main object. Play with your aperture - that will dictate what is in focus and what is not. Try the extremes (f 4 is maybe the least in a more basic lens, f 22 in the other end. f/22 will give you 'everything' in focus. Great for scenic, panoramic etc, but not when there is one thing of interest. It looks like it was this end of the scale you used it in. F/4 will only focus on the one object. Everything else will be blurred. You can blur too much though, so be careful. Hence i was saying play about.
Sorry for the shameless plug here, but its a good example - on my website *cough cough* go onto
here. Look at the 9rd photo of the owl flying. The background is all in focus, but it works in this case. Where as a photo further down of the toucan has the background all blurred. This was needed to bring the amazing colours into the picture more....though i dont think to highly of the photos in that part of the portfolio....they will be deleted soon haha.
Your obviously getting a lot of advice on here which is great. Just ask away, and play away with your camera to discover how YOU want to take photos!!