7.8

Very COOL sensor! And a good deception or “trolling” with a winning block - I liked it. I would give it a 5. BUT!
1) You really like awkward and difficult (unstable) tricks. Especially one place on the level where B falls off the level VERY OFTEN, especially on the way back. This is very disappointing and forces you to do a lot of restarts.
2) At this level I would recommend you to use red brick. Because it is impossible to guess where the main place is where the sensor is triggered. I tried absolutely every place around the level and at the top to find this main place. This is very inconvenient and frustrating. All famous builders in such cases use red brick as a mark (marker).
This is about taking care of the players and I would spend a lot less time and fewer restarts at your level. And I would get much more pleasure from your level and idea!
There are already a lot of restarts at your level - which every player will definitely make. Therefore, adding additional (meaningless) restarts is incorrect in my opinion.
Please do not be offended!! I (and other experienced players) really love your levels. Therefore, I really want to give you advice so that more players can complete your levels and enjoy your ideas!
If at this level there were:
1) red brick (marker) and 2) recovery place or fall restriction B. Then I would definitely give you a 5 for this level and idea!!

To help you and so that more players can pass your level, I made a video:

Spoiler: VS

For many this will be very difficult! This is why there is a very quick way to win:

Spoiler: Quick win

But, at this level, the main thing is the star!! The main gameplay for her!

Quick, fun & very tricky, specially the way back... I agree with @Denis Nazin about the red brick but in my case I saw it suddenly cause I thought that place was the most logic place to try thanks for sharing @Feta grodox gr0