1. You can check out a Japanese brand called Gull, their diving masks are colorful and I love diving with - look for Gull Mantis-lv for prescription, or Vader if you wear contacts like I do
2. other people on this thread have provided adequate info
3. from what I know there're heaps of Japanese diving brands with colorful dive equipments but this is an area you will have to explored yourself as I ended up buying another black color bp/w - the Halcyon infinity which I won't recommended for you at this moment given your dive experience
4. there is a brand called Bare and their wetsuits are by far the most flexible products I have ever tried, not sure whether they are available here as I travel between MEL and Hong Kong quite frequently and the price is more attractive.
5. However, for regulators and BCDs I highly recommend you to buy locally - you may ask for a discount/price match with other dive shops. But the after-sale service is what you will need afterwards, so try to buy from LDS, we want lower costs but not eliminating the local industry here. Unless you are jumping into tec diving (55m+) all you will need is a basic set of BCD and regulators - I dive with rental gears from local dive shops quite a lot overseas as it can save me hassles from bringing them to and from home all the time,
as long as they're reliable. It is not necessary to invest in expensive equipments at this stage. Instead, you can utilise the money to do more shore/boat dives locally, and invest in your own accessories such as reels, SMBs, and dive torches. You will need them anyway.
Additionally, the sequence of your purchases should be modified, dive masks + fin + wetsuits should be what you're after first. Before BCD and Regs.
For WETSUITS and BCDs, make sure you tried them first, different brands different models have different sizes and you won't want to regret for doing so - which I did, ended up having 3 sets of wetsuits and 2 BCDs.
For fins, you may want to get a pair with dive boots on while diving given the popularity of shore diving and the additional warmth that gives you. Mare's Excel+ is a popular model recently, with different colors to choose.
#having a colorful appearance is important - sooner or later you will come across buddies holding cameras underwater
sleepy diver