Not enough emphasis was placed on the texts. Even though the pictures are nice but they fail in transmitting the message. They could be better.

The last picture could use a bit more DOF to get the left parrot's head in focus. Nice picture though.

For the flowers...

#1 Could be used as background for wordings. Nothing special if on its own.
#2 Chromatic abberation on the edge of the petals.
#3 Seems to be a bit underexposed.
#4 Also seems to be a bit underexposed.

For the second batch, the motorcycle is seriously underexposed. Nothing special on the Land Rover emblem furthermore with distracting reflections. The portrait has bleeding of colours and I think it's not a good post-processed picture. No message can be seen.

My 2 pence.

I'm no sifu. I can't accept this title yet. Maybe in another 5 years time.