Hi Protonwira, Welcome !     

First time in this forum we have someone from Vietnam. Thank you 
We are a group of newbies in bonsai and learning from each other.
There is no great master like those in the ibonsai forum.
Please feel free to post your trees here no matter what sizes or shapes and share with us,
I'm sure everyone here will wish to know more about bonsai in your country.

Hi Proton Wira, welcome to the club..

Hi Protowira,

Wow! What awesome materials you have!   
Desmodium, especially with natural hard wood is something that could hardly be found in our country.
I understand that many temperate tree species can be found in your country, can pine species bonsai also
be commonly found in HCM city areas?

Zabel84x2

I sympathize your friend's father. His bonsai look lack of maintenance, now become more like garden plants. Can't blame.
His Prenma requires some fine crafting works, will than look fantastic.

If you really want to spend some money on bonsai, I propose something like the followings.

Prenma Microphylla 

[attachmentid=3236049]  A small size easy for maintenance, price +/- rm120 at Sanfong.

[attachmentid=3236054]

[attachmentid=3236089]  Probably rm300++

Why not get a cucur attap.

[attachmentid=3236058] Get one without dead wood, easy maintenance for beginner. Price rm300 ++

[attachmentid=3236059]

Since you have limited space, I suggest you get one of each, Premna and cucur attap. Put them on the highest stands in
the middle of your place, than arrange others, of coarse medium and small size around them. sure your will feel great with what
you have that way.

( The idea is plan your displace, than look for what is suitable in term of species and sizes, and bonsai stands is also an important part of it.)

Beautiful triphasia trifolata you have!
Importing a hundred J black pines, are you a bonsai trader?

Hi proton-wira/Qui,

According to information I got, there won't be any Bonsai Exhibition in Malaysia only after the General Election.

Hi Proton-wira,

Concerning about your boxwood, firstly I would like to say is I don't know much about the climate up there in your region.
All I can tell you about boxwood is growing in the hot wet climate in my country only.
Boxwood is a fiber root plant and grow well in loose soil with higher humus content but not water logged. During the dry season it got to be well watered.
I found that it grows better in a shallow wide pot rather than in deep big pot. Boxwood is absolutely an outdoor plant but can't be exposed to the hot blazing sun full day.
My boxwood are placed in between 2 palm trees and the hot afternoon sun is sheltered off. They only expose to the morning and evening sunshine.
As for application of fertilizer, I use urea-N46. dissolving 2 table spoon full of the N46 in 3 liter of water and apply once every 2 weeks. urea N46 give extra nitrogen
to all the plants and make the foliage greener, look fresh and healthy.
By looking at the photos of your boxwood, I suggest you look into the roots of your plant. As boxwood is fiber root plant, it can get root diseases easily. If so, you will
have to re pot and change all the soil. Or ... could it be over application of fertilizer? On the whole, I suggest you re pot your boxwood but try not to cut away much of their roots.
unless they are infested, and cut away all the dry branches and let them grow again.

Good luck to Buxus harlandii !