The problem I have with this design direction is that you are trying to build a Maple type tree on a Juniper trunk. Junipers are a peculiar beast. They are best served up with a lot of Jins and Shari. You need to look through the books and magazines that picture these trees as bonsai and you will soon realize that most Juniper Bonsai have a lot of dead wood displayed on them. Granted that a great percentage of these trees are collected from the mountains and the dead wood is natural. That does not mean that you cannot make a reasonable bonsai out of a tree like this one creating your own dead wood. But I think I can say; you will not find a World Class Juniper Bonsai without a lot of dead wood.
I think you need to dedicate a good deal of time researching Juniper Bonsai. I know many of the really good ones are collected trees but there is one thing you will notice rapidly; you will not find a World Class Juiper Bonsai that does not have a display of dead wood. Designing this tree as suggested in the virtual makes your Juniper look more like a Maple, than a Juniper. I know you will probably say that you cannot have dead wood on such a young tree. This is not true and you need to start looking at things in that direction. I think the most important advise you can get with this tree is to leave it alone until you can see a direction. I attached a photo of a Shimpaku of mine that has a lot of deadwood. This is all man made, or man induced is more accurate, but this is the way they grow and you have to go there if you want to good Juniper bonsai.
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