In my short wine making adventure I've made three wines with strawberries and the flavor was noticeable and identifiable but lacked the "wow" I was hoping for. I plan to forego further attempts until I have knock-your-socks-off flavorful strawberries or have another way to heighten the flavor.
I added the mint in primary, making a strong tea with about 2 cups of fresh mint from the garden. I used "sweet mint" which I really like for cooking and as tea. It's not as powerful as spearmint or peppermint. I tried to identify it and found 4 different genus-species names for "sweet mint" so I don't know exactly what I have.
What other fruits do you have access to? Strawberry pairs well with many. Rhubarb, lemon, mango, peach and many more. Maybe use lemons and/or oranges as your acid source? And spices - maybe ginger, cloves, cinnamon in very small quantities.
I'm surprised others haven't added their thoughts.