*hugs* don't get stress out ppl get watched and unwatched all the time. Don't sell yourself short, your a great artist. Don't let anyone tell you otherwise . And draw what you enjoy. That's what's most important . Don't fret, unless you running out of time under a big tank :P

The trouble with just starting out is that it's so much easier to notice being removed! People prune their watchlists all the time, though (at least, I imagine they do. I haven't, and consequently I have an unmanageable number of submissions to look at constantly) and it isn't meant to reflect badly on you. Perhaps someone did change their mind about wanting to see the themes of your art - but you've got a whole lot of people who know that they really do want to see more :)