There is a high chance I need to put the project on hiatus for a while.
I've been doing tons of research lately (mostly on feathers themselves, other things I have covered somewhat thoroughly) and broadening my vocabulary on feathered wings. The amount of stuff I've learned by self-studying is incredible, and when I compare it to what I used to know I'm in completely different league now. But it remains to be extremely frustrating, time-consuming and tiring that every couple of weeks I find someting new.
Oh those overlap like that!
...but only on larger birds, I see.
Just a small example of the complexity. I find a new "rule", and soon discover it doesn't apply to all birds at all. Or I find a rule, write it out, and then scrap it all because there was more to it than that. There's also a lot of misinformation in the internet (what are scapulars - where are axillaries - some sources don't even acknowledge the existence of propatagium) so I've been swimming around in it and looking for the correct sources.
I want to be able to make a tutorial that is all you need. I want it to be about basics, but in an all-inclusive way. And not too scientific - we're artists here and not scientists.
So that said, you must understand that it's a lot of work. I just recently got commissioned a LARGE painting, and since I'm a poor artist in need of money I'll be working on it for quite a portion of my time. Then there's my league running business, youtube video-making life and unfinished character sketches for my oc-account. In a couple of weeks my love and I will be reunited after 5 months of separation, and a week after that I need to start applying to schools and focus on pre-assignments. All while I'm desperately looking for a job.
So let's just say I'm trying to avoid burning out. :') The wing tutorial WILL come, but it has become a lot bigger project than I knew to expect. At least it'll be all worth it when it's done.