The second photo , incorrectly identified as a pomegranate, is an African Tulip Tree, Spathodea campanulata. It is native to Uganda, and is a thoroughly spectacular plant. I still want one!
In this photo, the larger pink flower is a relative of the Allamanda or Plumeria, but is called a Desert Rose , Adenium obesum. This species is native to Oman, in the area around Salalah. It can flower on bare wood, and the stem will swell up, making it a bit of a conversation piece.
The small one is a Mexican Coral Vine (Antigonon leptopus) or Chinese Love Vine – the little flowers are heart-shaped.
For those of you who care, there it is.