Off subject, those of you who know how, on Macro photograph how do you take pictures with flash without causing shadow, tried divergent flash, but seems to make the subject dull?
There are a few photographers out there who share their skills on the internet and have amassed a big back catalogue which is like an online training resource.
David Hobby "the strobist" is a great place to start for everything to do with small flashguns or "speedlights" whether tabletop or blending fill-in flash into ambient lighting.
Neil Van Niekirk is another - his forté is weddings but flash is a big part of his style.
Joe McNally is third - wildlife, dancers, athletes, and a long career as a photojournalist.
All these guys have a lot of technical skills to impart as well as practical and aesthetic and simple inspiration...
Two or three flashguns, bought second hand, controlled manually are a powerful and relatively inexpensive tool.
In your photos above, two flashes on the fly, from different directions and different powers to be "main" and "fill" and a third flash lighting the white paper background from behind to dial it into pure white or whatever shade of grey you want.
You have a still subject and all the time in the world to dial in the flash power manually and get whatever balance you want.