This does not quite fit your parameters for help. My request would be to give me types of plants/shrubs that I might use. I am replanting a portion of our garden and I could send you pics of the area that I am working on. Please let me know.
Thanks
As you give no indication of the garden location, orientation, soil type or amount of sunlight, I am including a couple of links so you can choose the one best suited to your situation and work from there, see below.
The right plants for shaded areas: Mark Cullen | The Star
12 Best Perennials for Full Sun (thespruce.com)
If you are still unsure of how to go about creating the garden you envision, I would recommend you consult a landscape designer or experienced gardener in your area. If you have a local nursery or large garden centre, you should ask their advice and if they can’t help you, reaching out to Landscape Ontario would be a great starting point to finding a garden professional, link included below.
Landscape Ontario Horticultural Trades Association – Landscape Ontario (horttrades.com)
Hope this helps.