Mimpe, I'm going to challenge you a little:
2. Learn the right time to ease or cut the power - in your training aircraft it will probably be when you are about 4-8 feet off the runway. In certain aircraft like prop twins , a certain amount of power is kept on till virtually on the runway
The right time to cut the power might be downwind, 'cause sometimes it is! The use of power or not will affect
where the landing will occur, but should have nothing to do with how
good the landing is. The landing should be power off, so where on the approach you have cut the power should not affect it. If your good landing is
dependent upon the use of power, more power off practice is in order.
In nearly all twins, and some singles, the wheels retract. Needless to say, having them extended for a runway landing is good. Checking they are extended is better. Having a working warning system to tell you've overlooked extending them is really nice - these systems comes with most RG planes. However, if you carry power into the flare, you have disabled that system. If you have forgotten the wheels, and you power into the flare, you're going to hear a crunch and a throttle activated gear warning horn at about the same time. That system works with a switch on the throttle, so at idle, you get the horn if the wheels are up. Better to close the throttle(s) well back on a well set up final approach, so the gear warning system can work as intended, and have time to deal with the gear still being up. Then, you can focus on your good power off landing, instead of being distracted by the engine. If you need to sneak in a little power, we'll try not to notice....
5. Practice a lot - my guess is 100-150 landings is a good number to get consistency.
If you're getting consistant landings after practicing 100-150, you're awesome! - It might take more, but keep practicing!