Hello and welcome to deviantart!
Great first pictures! You can edit your profile to make it look more attractive to others. If you want to get your art seen, I would recommend connecting with groups of your prefered art medium/themes or simply groups of other interests. Deviantart also has a great forum.
If you find art you like, make sure to add it to your collections and "watch" the artist to get notified when they update their art.
Please ask me if you have any questions or need help.
Have fun on deviantart!