Looking for playtesters for a puzzle

[Merdock]

I have made my first puzzle, but I want to make sure that it works. I'm wondering if anybody would be willing to play test it.

https://sudokupad.app/bvitzg9ddc

I don't know how I would rate the puzzle, I might rate it a 2. I think there are times that you have to hold a couple things in mind, but nothing too severe.

Mostly I'm looking for feedback. Do my rules make sense, does the puzzle have a unique solution, does it play well, and does my difficulty rating feel right? I would love any feedback, especially criticisms that can help me improve my setting skills.

I attached an image of an example of the non-standard variant rules that I used. I think my explanation is clear, but hopefully the picture clears up any confusion

I think there is likely a couple of clues that are unnecessary, but I wanted them there to go with the theme of the puzzle.

(Edit: I forgot that I needed to include an extra constraint in the puzzle, so I updated the link. The major change is that the red circle on the red line is now a red square and requires an even digit. This means my example might look a little different than my puzzle)

(Second edit: I took a second look at the puzzle, and I think it's possible in its previous form. I'll post the original link I had here. https://sudokupad.app/chq7pajy8a )

[Merdock]

For anybody curious for where I think I can skip the additional constraint, I'm including an image that might show why I think I leave it out of the final puzzle. 

The constraint, which indicates that the cell in c5r6 must be even, which forces a specific there. That forces a another digit in c4r3 and c6r9 (the three cells are tightly linked).

The image shows where the puzzle might be when your trying to deduce c5r6, c4r3, and c6r9. The center marked digits indicate what possible digits could belong there given light-to-moderate deduction. The corner digits are what would appear if c5r6 is a 7 (the only other possible value for that cell). I don't want to explicitly state my thinking for fear of spoiling anybody who wants to figure out how I put a digit in c5r6

I think the puzzle without the even digit constraint would likely be considered a point more difficult than I initially rated this puzzle.

If there is a problem in my assessment, please let me know.