I get a lot of emails requesting that I put up videos on how I photograph my fly's. I am always in a quandary about this because it really is beyond the scope of anything that I have ever done yet. you see, I have been perfecting my art since 1986 when I started photography. I have since spent several thousands of hours and tens of thousands of dollars on pursuing a fine art degree, honing the skills required to produce the images by applying optics and color science.
Professional photographers, including myself, wish that people could understand that photography is not just a matter of taking a picture and having it come out of the camera ready for publication. There is a great deal of digital darkroom involved to sharpen images and correct contrast not to mention composition and lighting.
As a professional photographer who's life work hangs in galleries, I just simply ask that people respect the labor and toil involved in creating these works of art. As a professional artist, my specific "how to" get images to look the way I do is not something that I am willing to give away for free. Not at least until I have recouped my investment in learning this craft. Most professional photographers cringe everytime someone asks them to give away thier work. Would you spend your life learning how build a house, labor in its construction for 30 years and then just give it away for free to a complete stranger?
To be fair and get you going in the right direction, I will say that you should perfect your in camera (DSLR) white balance, use good studio lighting such as soft boxes and quality optics including macro lenses. Learn your lenses optimal aperture for the sharpest image. You should also go to Lynda.com for tutorials on color correction, selective sharpening and other photoshop image editing procedures. The web also has tons of macro photography videos. I still go to YouTube and watch tutorials on a regular basis. After 30 some years, I am still learning something new every time I seek it.