Agree with above, but just so you know avocados usually have very ugly leaves. They start off lush and green and as they mature it is very common for them to have some growing at the tips, then they fall off and coat the base of the tree acting as a natural mulch. They grow in waves- flush of leaves which grow, get burnt st the tips, maybe fall off, then flush again. My biggest tree was bare for a few weeks while flowering and now is pushing out leaves again.
I do think your landscaping is too lush for avocado but I think it can still grow. It will be a little scraggly for now based off of the shape I see. I try and have mine more bushy because our July -august- September hot spells will give 100 degree weather that burns the trunk. The fuller I can get it with leaves, the more I can sacrifice them to shade the trunk (or I can whitewash it ...)
Avocados are pretty tough trees I've found, especially the larger ones. If you see little buds on the sides of the green wood, then they should slowly push their way out.