Hi Brianna, welcome to OpenStreetMap. It's unfortunate that you've spent the time adding cycleway names to individual ways duplicating what OpenStreetMap already has maintained via a relation (a collection of ways).

For example: Bulimba Creek Bikeway with 57 sections (osm.org/relation/1675755) and the massive Moreton Bay Cycleway with 508 sections (osm.org/relation/319768).

You can read more about cycle routes on the OpenStreetMap wiki: osm.wiki/Tag:route%3Dbicycle

I recommend checking out the wiki for more information on editing OpenStreetMap: osm.wiki/Get_help

power=minor_line

osm.wiki/Tag:power%3Dline

You've incorrectly removed the landuse and residential tags from this area, which should remain. The line now does nothing in the mapping and no longer renders.

Your changeset comment is also just a question mark, please put a couple of seconds of thought into leaving useful changeset comments so that others can understand what you are doing.
osm.wiki/Good_changeset_comments

The "building" tag is used for the building outline only, it cannot include the whole piece of land.

You can read more about how to tag buildings on the wiki:
osm.wiki/Key:building

Often in housing estates we just map the land with a single area for all neighbouring houses excluding roads, parks, shops, etc. Then map the houses, driveways, pools, etc as individual features. This way it creates a lot less work rather than mapping individual housing lots which don't really achieve anything.

Just a heads up, you usually don't need to fill out suburb, postcode, state and country for every map feature. OpenStreetMap tools will derive these from suburb, state and country boundaries.

If you want to check how address resolution looks based on the entered data Nominatim can do this. For example, I've linked to the node for a house on Rocky Passage Road that only has a housenumber and street tag, but resolve the full address:

https://nominatim.openstreetmap.org/ui/details.html?osmtype=N&osmid=10258968942

You've incorrectly added a house number tag to Pitt Street, i.e. the whole street.

You've incorrectly retagged a Redland Bay residential area as a single building, and moved a footpath on Mary St in the Brisbane CBD.

You'll also want to tag the pool as a swimming pool with using the iD preset or:

leisure=swimming_pool
access=private
location=outdoor

Hi, Electro97, welcome to OSM.

The name=* tag should not be used for descriptions. name=Shed on a building=shed doesn't achieve anything. Unless your house has a name with a sign on the front like some old Queenslanders, don't put a description of how you use it (e.g. "Main House") in the name field, the same applies with the 4 buildings in this change.

For more information on how you should use the name field check out the OSM Wiki:
osm.wiki/Key:name

Hi, you're mapped a horse track with highway=unclassified. The iD editor has a preset and it's documented on the wiki. You should instead use the following:

leisure=track
sport=horse_racing

Hi, I'm curious why you are mapping complete residential lots with leisure=garden?

The tag is meant for "a distinguishable planned space". Most of Sheldon is just unmaintained and unplanned bushland with a few small gardens on some lots.

The OSM Wiki also states that "Areas should not include features (for example residential houses) which are not part of the garden itself."