Hi Xuan,

First one looks like 'Pink Silver' to me. The second one looks like 'Red Buttons'. They both look happy!

Denise in Omaha

Many thanks, Denise. Got it!

Xuan

There does not need to be a variety name for your plants, just Hoya pubicalyx is fine. Unless your plants are for sure a cutting from one of those varieties then what you have are two other unnamed versions of Hoya pubicalyx of which there are undoubtedly thousands because every seed grown plant is unique.
Most of the Hoya pubicalyx cultivars were from a single growers collection who I believe was from Florida if I remember correctly. The names were given to seedlings after they flowered and had noticeably different traits but one thing remains the same, they are all the same species, Hoya pubicalyx. If your plants were originally from the wild or are of unknown source then it is best to just keep the species name and not worry about rest.

Mike