Hi @dolores-0o! 💕🤗 First I want to say welcome to Tumblr! I hope you like it here! There are lots of really nice people in this fandom so I'm sure you will find some like minded people to chat with and blab about our OCs with.
Second, do you have a link to your twitter and your MC art so we can see them and check out your other art too?
And third, there are a couple ways you can reply to a reblog. One is to reblog it again from the person you want to send your reply, links, pictures or whatever you want back. :) We do a lot of this for roleplay, fandom events and cute picrew chains. If you don't have too much to reply/images to share and just want to reply, you can put a new reply on your post and tag the other user with @ like I did up above. And, of course, you can send an owl/message like you did here! ☺️
Anyway, so glad to have you and can't wait to see your MC! Hellendil says hi, too! Always good to have more friends!