Found this on Derpibooru and it immediately caught my attention; it's beautifully rendered, and it's got solid coloring and shading. I wouldn't be here if it didn't had those qualities.
However, I think it's time for an intervention, just as the Internet has helped me improve me as an artist in the past. It's up to you decide whether to take this into consideration.
You see, it's obvious that you like to draw men, and you do it well. However, this seems to bleed into the way you draw women with some... results. When I first saw the thumbnail, I sincerely though I was looking at a male Rainbow Dash. I clicked the link and I still saw a male Rainbow Dash. I'll go as far as to say that she is a male Rainbow Dash. Keep in mind that I said that you obviously have skill, and I'm not saying that you should go full kawaii ugu~ anime style; it's mostly a manner of proportions and skull shape. The reason why Rainbow looks like a dude is because her jaw is way too long and sharp. Also, the brim of her forehead seems to be a bit too pronounced for a female skull. Lastly, her shoulder look pretty broad here.
And for the record, I don't think all this is done intentionally.
The same thing can be observed in other characters, though to a lesser extent; Rarity's jawline could be rounder and Pinkie kinda works, given the overall shape of her body. Other characters actually look pretty solid, like Twilight and Applejack. Some people are complaining about the noses, but personally I think it's a refreshing change from the usual near-non-existent ones that you see a lot. For variation sake, perhaps make some of them a bit smaller? Mix things up a bit.
I'm not sure I feel great about my art being reposted like that D: But I suppose there's nothing I can do about it so I'll let that rest.
I don't actually have a gender preference, I really love drawing both men and women, but I know I have a personal preference for 'masculine' qualities because that's what I find attractive - and see in myself, as a female person with strong cheekbones and jaw uvu It's probably due to the fact I've used my own face as ref most my life, and my bias towards ''masculine'' features haha. I can agree with you I noticed Rarity's jawline is a bit messed after I already finished it, but I'm frankly too lazy to go back and change a full rendered picture - Rainbow Dash was intentional though. She's supposed to look just like a boy, because my headcanon of her is very genderqueer tomboyish, and that she tries to look as masculine as possible. She is certainly not a male Rainbow, she's genderqueer, but I'm glad my intention came across there. (Her shoulders are a ittle messed though, I agree, mostly because I just tried to fill space in the composition with them whoops)
Thanks tho! I wouldn't refer to a critique as an 'intervention' in the future, it sounds just a touch rude, and maybe someone who isn't me would have taken it the wrong way @_@
Derpibooru simply aims to document all known pony art out there, and there is a great emphasis to make sure that all sources and artists are properly marked as to give them the credit they deserve. As for the people there; it's definitely a huge improvement over its predecessor, Ponibooru, but they can still be pretty harsh due to anonymity. Their unfiltered opinions may be more useful than what you get on deviantART, though. If you honestly wish Derpibooru doesn't publish your work, you can opt-in to be on their do-not-post list.
Without delving too much into Tumblr-politics, if you intentionally wanted to give the idea that Dash tries to be as masculine as possible, physically, she is still female and there is only so much that you can change. If the jawline/skull was slightly more feminine, it would have conveyed the idea that she was trying to be masculine much more clearly. Long story short, your intention is clear to me now, but to someone with a fresh mind it's... confusing, to say at least. Once a piece of art is out there, you are at the mercy of how people interpret your work.
And I realized I shouldn't have used the word "intervention". Without any more tip-toeing I'll just say that was stupid of me. But I'm glad you took my comment as it is; an external perspective on this particular piece.
Like I said, I know about sites like paheal and such so I guess I'm not really bothered, if it's sourced properly. I'm just a very casual MLP fan, I enjoy the designs and wanted to make a print for a convention, I'm not bothered by people being rude and I'm not going to look.
I don't like your use of the word 'tumblr-politics' as if gender politics only exist on Tumblr, but I'll let that slide. I don't really care how people choose to intepret her in this piece, I just drew my personal headcanon and you don't seem like the type of person who wants to hear too much about that anyway!