FIrst off, welcome!
Secondly, those are some very nice pictures of people with either professionally-styled, heat-styled, or expertly styled hair. Back to you. You're a newbie, so allow yourself a lot more time (by that, I mean weeks to months).
You have been "training" your hair to act straight so you don't even know your waves very well yet.
A good haircut will help enhance your waves and give them shape. FLaxseed gel might be a winner for you, although most wavies use it with a harder-hold gel. You have some nice waves and with practice, they will get better and you will be happier with them.