I would remove the lower branch on the right - it is just in the way and makes the tree look off balance. And it adds nothing to vigor. Continue to develop the upper branches into a proper crown.

"but i don't know if i should be pruning like an indeterminate, or leaving alone like a determinate" Agree that one shouldn't prune any of the Huskies. But your statement above implies that indeterminates must be pruned and that is not so. Pruning indeterminate varieties is a personal choice, merely an option relevant to space and support. It is not required for any reason and many growers never prune their tomato plants regardless of the type. Dave

I have a 10 ft high weeping norway spruce and support it to grow straight up. I plan to cut the leader off one year and let it cascade down via several side branches. That tree I once cut the leader off when 7 ft tall, but then decided to continue to let it grow taller. So I bent up a side branch at the top, tied it to a stick of bamboo, and it continued growing straight up, making that side branch its new leader. You could do it too, after cutting off the top hanging over.

Olivia can get up to 6+ feet in 2-3 years in California and elsewhere with mild winter. Unlike in the UK, it is definietely not a rose that stays within the 4 feet tall range. In fact most David Austin roses that said 4 feet in height in their catelog will get to at least 5 - 6 feet unless you live in areas with issues of winter die back, in zone 5 - 6. My Olivia got up to 6 feet after 2 years even with extensive summer pruning. It does throw octopus canes. During its first year it reached 4 feet. It is in the back of the my rose bed. You can safely prune those long canes for Olivia. It won't mind at all. After all it is not a once blooming old garden rose which you dont' want to prune at this point of the year. However, if you wish to have rose bushes that stay around 3 - 4 feet with rouind shape, most Austins are not in that category. The exceptions are Munstead Wood and Boscobel, which I managed to keep around 3&1/2 feet tall. Agree with threelittlelights13 that planting in groups may help in the look. My garden is semi-gormal with a lot of boxwood which were planted 1&1/2 feet apart - now all grown together. and helped to create a more formal look. I am not sure that's what you are looking for, and perhaps you just want a neater looking garden. Nevertheless, I included a few photos below. Those in the fronts are Boscobel and Bolero which does stay wtihin 4 feet with pruning. The yellow is Julia Child which actually reached 5 feet in the spring.