The choice of brick (veneer) is great. Replacing the balconies with the juliette balconies for airflow, while allowing for more livable floor space would be ideal.
Keeping the Jasper facing facade more uniform and flat would also be an improvement.
Borrowing from another Jasper Ave building, Starkman Bldg, the window trim could be black.
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Alternately, there are modern examples of integrating a juliette balcony into a building like this. A brick or stone lintel can go a long way in enhancing the appearance. Some tasteful glazing is also a good option.
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The bar is so low with mid-rise buildings, that I believe any of these options would be an improvement.