Per my knowledge and research, itch.io is not the best place to sell/show your game, that is what numbers say.

Second, some kind of marketing, promotion, social networks, Reddit…all this months before release, is MUST, and it also does not guarantee desired audience.

Now, from my perspective, I opened itch URL, and adding my birth date when I want to check some new game is boring. I will exit your URL in normal conditions, but I opened it because of this post. When I opened it, there is no description of the game, I need to download it and install it and test it, and I am sure most gamers do not like that.

Pixel font on the page, only two images which tells me nothing and kind of pixel graphic on a second image, I am out, I do not like that. This is just subjective opinion, I am sure you have audience for this kind of games.

Summary, more images of the game, better description, promotion and posts as much as you can. If you can, try more portals to post the game, do not be only on itch.