So after two weeks of overtimes and bad weather I finally found some time to try out my new camera in the park. Now this is my firtst dslr and there is alot to learn but I'd like to hear how am I doing for a beginner, so please toss in your 2 cents

I hope this is the right place to put them.
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NOTES:
My gear was Nikon D90 with 18-105 kit lens.
PP done in Nero Photosnap, as I dont have any other photo software yet, and consisted of cropping and minor usual adjustments. Also jpeg compression wasnt the best quality.