First couple I could do without. The night shot of the city is great. Baseball is a little underexposed. After that the rest I think are pretty good, especially the bugs/macro work.
The macros are solid. I like the angle you took on the first shot, I've found a diagonal angle can really make the difference between a good and bad photo (although the subject matter could be a little more interesting
great macro work, longer shutter times on the moving water would look cool, gives it that smooth professional feeling.
and in the last picture maybe a crop would be nice.
for first pics, great great job. keep up the good work, and post more pics!