Final case study icon set

Last week's evenings I spent by designing my first case study(?) on one company's webpage and my vision for it. So I designed custom icons for it too(huge thanks for awesome icon design newsletter and some feedback from by @Justas Galaburda ). Let's hope that I will land this client and be one more step closer to switch to 100% freelance. :)
Feedback much appreciated. What bothers my eye - bulb icon too small? And inconsitency in stroke weights(eye and webpage icon only has 4px strokes, all other has some 2px strokes somewhere.