Welcome back again. Your art improved. That's a win in my book, even tho the 4 years may feel like lost time for you in this regard. I don't see it this way, but I'm not you and things are more complicates inside our own head. Sometimes you just don't want to when it comes to personal art projects. Not really something to apologize about for. Especially not for a free or WIP commercial project, that hasn't launched yet. It's not like you sacked Kickstarter money and ran.
We are just happy that you are back and want to do your thing. It's nice to see story weavers pop up and give a life sign - and be it just a small "beep". 2019/20/22 and the following years took a couple of them from all of us.