If you are attracted to somebody and want to ask them out... do so! Sending an anonymous bouquet of flowers is a sweet gesture, but the idea is to eventually ask "did you get the flowers I sent you". Sending anonymous gifts over and over reeks of desperation and inexperience. If you aren't mature enough to tell somebody that are attracted to them and would like to go on a date, you probably aren't mature enough to be dating in the first place. Communication is the key to any successful relationship.

'Fess up. Say "Yeah, that was me. Sorry it bothered you. I'll stop." Then stop hanging out with her. If you're the guy to whom she complains (for example, about her boyfriends) then she's not that into you.

Well now you know that you’re creeping her out. Either stop with the anonymous gifts, or just tell her it was you and ask her out.

She'll be relieved it's you when you tell her, I'd imagine.

send her dick pics, just to curb off the edges

Why would you send them so often without revealing it's you. You virgin creep

That's a bit... excessive.

Here’s your hint, stalker.