First one.. I don't know.
Second one looks like Kumming kina but not 100%.

I don't recognise the first plant either but it is very beautiful. The second plant does look like Hoya sp. Kunming Kina from Southern China, this species is also sometimes referred to as Hoya revolubilis. Do you know if both of your Hoyas were collected in China?

Check the link below for a botanic key to Hoya species in China, hopefully it will help.

Mike

Here is a link that might be useful: Hoyas of China botanic key

thanks Jan and Mike.
Yes, i bought them from a china seller. I still have 3 unknown species.
Hoya 1

Hoya 2

Hoya 3

Really thanks for your help~~

Nice Hoyas!

The first one looks like Hoya graveolens.

Number two looks like Hoya cleminsorianum but the veins are less pronounced than my plants, take a look for comparison.

Not too sure what number three is.

Mike