Eldar are crazy powerful. One of the things that makes them that good is ScatBikes. Other things include Warithknights and Warp Spiders. Wraithguard are also up there. If you want to make a strong Eldar list, just spam the broken stuff.
If you want to play a fun game and keep your friends, you need to tone it down a bit. This depends a lot on your local meta. Some are highly competitive all the time. In which case, gloves are off and go for it!
Magnetizing bikes is pretty easy. The Fire Prism is doable, but takes a little more work. One reason to magnetize them is so you can tone down your lists. In a more friendly setting, run the bikes with 1-in-3 heavy weapons. It will also future proof your models. If
GW wakes up and realizes that every bike with a heavy was a little unbalanced and nerfs them, you won’t have a ton of bikes you can’t field anymore.
S6 spam can deal with most everything. Except heavy armor. You have the Fire Prism, but I’d want more going up to higher point lists.
Competitive answer: Unit of wraithguard in a
WS, or a WK.
Slightly more friendly answer: Fire dragons in a falcon, another
FP
Pretty casual answer: just scatter brightlances across your army in things like guardian squads, on WSs, vypers, falcons, etc.
What other parts of the Eldar army/lore appeal to you? Bikes, obviously. But when you start on a strong core, you can pretty much take whatever you want and still have a valid list. One of the problems with Eldar is not making a competitive list, but making a fun one to play with/against.
If I was adding to your list to boost it up to 1k points, I’d add a guardian defender squad (platform/warlock) in a
WS (brightlance) and a fire dragon squad in a falcon.
For painting, I use mostly Khorn Red. Takes a few coats to get a smooth finish. Then mostly black and silver. I also use a micra pen to blackline the panels on the tanks. Fairly simple scheme I can bang out pretty quick.