hey guys
I hope all is well.
I am 26 and recently I have noticed my penis skin is way too dry, probably due to circumcision from birth.
Also if you see in the pictures my erection feels like it is constantly changing, sometimes it's strong sometimes this week. could that be due to frequent masturbation? would try have been trying to reduce.
You'll see what I mean in the pictures the last one is flaccid. also on a final note is size ok
? 
Most Men are concerned about the size of their Penis, most, like myself, have very average penises in terms of length and girth. The unfortunate thing is that many Men look at male porn stars and think what they have themselves compares rather inadequately - this is an unfortunate comparison, as, as I say, the vast majority of Men are simply ‘average’.
Be thankful that you do not have a ‘micro-penis’ - which is the other extreme of penis size, and, if you are thinking of how you may ‘measure-up’ during sexual activity, it is about you as a person, that is most important, as is the manner in which you interact with your sexual partner at the time that is really important. This has almost no relevance to what you have in you pants other than what you think about it yourself.
In terms of the dryness, unfortunately, this in the main is the consequence of you having no foreskin. However, there are things you can do to help your Penis to be as healthy as possible. Never wash it with soap, use water only and rub gently with the inside of your hand, then pat dry, immediately with a towel. When you take a shower, try to keep the gels and washes and soaps from running across your penis - then make sure you rinse the head of your penis with the running water to remove all the detergent agents you have used elsewhere on your body.
The next thing you need to do is find the best plant-extract oil that best suits your skin-type. Some people find Olive Oil (just the ordinary one you use at home), Coconut Oil or Aloe Vera gel are the likely best ones to try. Try them one at a time, give each at least 5 or 6 weeks to see whether you notice any change - simply apply and gently rub in using a gentle massage action. If none of these work, go to one of the larger high street chemists and ask for advice - DO NOT use normal skin creams, ointments or gels as you need to be using the one that suits you best on a daily basis.
Finally, in terms of strength of erections, and it varying in terms of hardness you achieve (on different occasions, I take it you mean?) from time to time, there are many things that can have an adverse impact on this. Some medications can have these kinds of side-effects (if you are taking any), if you are an active person, or totally inactive, if you are overweight, if you are in a regularly stressful situation in your daily life. As you note however, frequency of masturbation can have a huge impact on this. Some people say that looking at porn too frequently can have this kind of impact.
The satisfaction you achieve when you masturbate can play a key-role in this too - for example, do you see it similar to a task, something you need to do, maybe get it over as quickly as possible. If you always make yourself ejaculate each time you masturbate, particularly if you masturbate 2, 3 or more times a day - in time, this can have a severe impact.
So, what to do? If you can, ease back on the frequency, initially, restrict yourself to once a day. Then try setting a target of 3 or 4 times, only a week - you can continue this process, if you achieve success in restricting your masturbation that is, by setting a goal of no masturbation for 4 days, then 5, then a entire week if you can control your urges of course. See what you think of all this, and ask me any further questions you may have on this …
Ideal, what you need to work on is turning Masturbation into being about your self-pleasure, about being something a broader range of pleasures from, rather than, perhaps, simply making yourself ejaculate, too often …