Looks like the oil slipped down the fascia and not in the muscle. Also you just may need to work your way up to 1.5ml in the shoulders. I'd suggest starting out with .5 cc's and build up form there. Probably a good idea to build the tolerance of the muscle.
Whew! I was thinking you're seriously hardcore brother - first pin in the delts with an 18gauge and 1.5mls.
Seriously I'd try using less in the delts for a while. I'd use a slin pin personally. Just heat the barrel with oil under running water and it's a piece of cake. Just make sure to keep the pin pressed all the way in since it's fairly short.
You be fine bro, but it does seem too low. Next time flex your delt in the mirror find your muscles peak. This is where you can pin without problems. And I use slin pins a lot with op's gear its thin enough oil to pin no problem w/o heating. As long as your bf% is low enough you will be IM at the .5'' depth with a slin pin. IMO Virgin Delts shouldn't be pinning 1.5ml ever, Your muscle is too small to hold over 1ml there comfortably. Good luck with everything bro.
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