For your pic #1, if not for the slight colour tone on the sky, I would thought it's black & white. Nice framing for someone who started shooting.
As for your #2, the colours not strong. Especially during sunrise and sunset, the hue is more vibrant. Did you reduce the contrast on purpose? IMO, composition looks good.
By the way, why both of your shots uses ISO1600 and shutterspeed is at 1/8000sec (max of the shutter's ability)? I would suggest you to stick to the 1/focal length "theory" to maximise your lower ISO.
Thanks Qazwer for your view and sharing. Sorry that I am just back from my business trip.
Will take note of your sharing seriously. Look forward to come back to post more nice Pics soon