Should I go moderate plus or high profile? (photos)

I recommend high profile.  The implant selection should be based on a combination of your desired size, soft tissue dynamics, breast base diameter and skin elasticity.  I recommend an in-office examination as well as a detailed discussion with a surgeon who you are comfortable with.   Finally, make sure your surgeon is a Double-Board Certified Plastic Surgeon certified by the American Board of Plastic Surgery (ABPS), a member of the American Society of Plastic Surgery (ASPS), a member of the American Society of Aesthetic Plastic Surgery (ASAPS), and a fellow of the American College of Surgeons (FACS).Best,Dr. DesaiBeverly Hills Institute for Aesthetic Plastic SurgeryHarvard Educated, Beverly Hills & Miami Beach TrainedDouble Board-Certified, Double Fellowship-Trained Beverly Hills Plastic Surgeon

The difference between higher and lower profiles for a given volume is projection and for a given width is volume (with the high profile implant being greater in both scenarios). The moderate plus is the most commonly used profile in my practice. It allows for the most reasonable volume in a given BWD. In my practice, low profile implants are the least commonly used (widest and flattest). I will typically reserve high profile devices for smaller framed individuals or those seeking a less subtle more dramatic change (the opposite of natural). 
In general, the difference between a high and Mod (+), in reality, is very small (on the order of millimeters).  In my practice, I generally classify profile based upon patient preference. A higher profile provides a more dramatic look (size for size) vs. a moderate (+) profile which is relatively more subtle and understated. That being said the vast majority of patients will select a moderate + profile device (especially those seeking a more natural and subtle result).
I often find it is easier to decide on a profile (rather than a volume), this combined with BWD will determine volume. Trying to match a particular volume to a profile may lead a BWD mismatch. In my practice, smaller framed individuals do prefer higher profile devices. I discourage pursuing significant volume as this is a hallmark of the "augmented" or "fake" look. Small girls typically have smaller breasts. Over-sizing leads to a frame mismatch which is not "natural." The difference between mod (+) profile and high profile is subtle and less dramatic than the difference between low profile and the alternatives. Ultimately, it is a choice between more or less subtlety.Based on your photos (self/goal), I would recommend considering higher profile devices as this will provide greater volume and projection for a given BWD.
As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Hi.  Although sizing is best done at your PSs office so that you can see what those sizes look like on you, I would suggest you consider high profile implants.  Based on your photos and your desires, moderate implants may be too wide and not as projecting as some of the pictures you showed.  Check in with your PS to double check what the options are and what the outcome may be if you choose one or the other.  Best of luck!