First Post - looking for some honest critique

Hi - im a hobby digital artist(ish?) i usually get no feedback about my art other than "nice". what i am looking for is some honest discussions about digital art..

id like to have some honest critique on this.. maybe some tipps, help how to improve? stuff to avoid for the future etc.
i absolutely struggle with colors. its been a year since i started bothering with them.

recently i stumbled upon krita. it is a free (!) digital painting software as good as photoshop and much more clean and lean. i read in a thread by avni about why he draws with paint - its easy and simple to use - same goes for krita. ( https://krita.org/ )

if someone has question about that feel free to ask. also- here is a video showing the process. its at 800% speed - i live in germany so i need to use copyright free music so be aware ^^ - i took breaks between and it took roughly 3,5 hrs. i did it as practise ( screenrecording has a timer ticking nearby ^^ ) because i tend to tinker with the picture for ever sometimes...


thanks in advance