You do not need a professional landscaping architect to tell you exactly how your garden needs to be. At the end of the day, it is how you want it to look and your ability to grow plants which matter. However, if you are interested in gardening and already have a rather impressive collection of plants at home, here are a few tips to help you landscape it better.
This will depend heavily on how you want your garden to look. Some like it more cluttered, while others like it well laid out and plants separate from each other. However messy you want it to be, it still needs to be tended to and pruned from time to time. While the bushes can be pruned by yourself, you might need the services of a professional for tree lopping. Especially if you are having vines in the garden, they can easily take over the whole area if not kept in check. Make sure to fix proper props for the vines to grow on, maybe even form a small canopy to create a gazebo in the garden made of plants alone. Link here http://www.coastlandarbor.com.au/tree-loppers offer a great tree service that can suit your needs.
Also, there is no rule saying these plants need to go here. However, certain plants need more sunlight than others and some need to be completely hidden away. In this case, rather than covering up using man made items, use the orientation of your garden and plant life to give the other plants the sun or shade they need. For example, for orchids, a lot of sun is needed, while for a bids nest, not so much. If you have a massive palm tree covering everything up, you might have to get rid of it, or work around it so as to allow light to fall on the other plants. However, palm tree removal can be tricky, especially as they are so large so you might want to get the services of a professional that knowledgeable to handle tree service it for you and clean it up as well.
Mix and Match
It is always nice to have a little variety in the garden. Unlike in the house, you do not have to be too strict on color coordinating and thus, plants can be mixed around. However, unless you have a lot of time to devote to your garden, limit the plants to local ones which have already adapted to the local climatic conditions. Imported plants will require a lot more care and unless you are capable of giving the love and care it needs, do not plant those in your garden.