your introduction posts is fine, good start of your jouney. the following posts tho (bitcoin pic or the art) could be seen as copy/post. to prove that these are yours you could another source, any other conventional social media where you confirm that this is made by you. the best way to succeed on APPICS is to post your life with a story to each photo. if you want to get in contact outside of APPICS, you can text me on Instagram @appics_spain