thanks all for the wonderful feedback, hopefully I will have learnt more in my next photos.
1. composition, i'm always guilty of pressing the shutter too quick without thinking or even framing properly.
2. light & exposure, this is still a bit alien to me, but I'll try to learn.
4. cropping, I think this one should be easy.
3. PP, this is not my cup of tea. And i'm always struggling to make the image pop. Anyone can link me to a tutorial somewhere is mostly welcome. I use lightroom.
For the last image, I have another one but still the boat is not at 1/3, not sure if you like it better.
my wife forced me to take up photography :'(