Most definitely you can, it's not competition art is expresing yourself with 1 way or another (photos, videos, drawings etc) you have good eyand good skills, really liked your artwork 😊, no i just save everything on my phone as it might be potentially what I want to do on tattos or is just for myself I upload on socials tho. And actually never considered to upload in there but I start slowly now you mentioned 😊 as I got some drawing taken without my permission when I uploaded on some random app and now there's loads of versions of it people actually with tattoos of modified version of it..
