if it's a dick pic out of the blue (like on tinder or w/e) most women will think it's funny/pathetic/desperate/creepy regardless of the guy. it's different if the conversation directly leads to exchanging dirty photos or you've been together a while and already have a dynamic of spontaneous sexual stuff or w/e, but just randomly sending dick pics is a creeper strat for sure. tbh even i'd feel pretty dubious if a girl was flashing me her snatch right after we'd started talking. i mean, i wouldn't be complaining or do the whole shaming thing women stereotypically do, but i'd be asking myself questions about the person's self esteem/level of desperation/whatever (depends if that's your type though i guess lol).