That is why you need to have an accurate/neutral reference to base your tests and comparisons on. It is also why I rely on my Klein + Hummel O 300D's, because I have painstakingly over the years adjusted to almost perfection by building a studio around it with acoustic treatment, the ARC System, and additional EQ so it measures as flat as possible with testing gear (this is important--you must utilize measuring gear because you cannot fully trust your physiological and emotional biases). Because my reference monitors have been measured as close to my acceptable range of accuracy/neutral, I know I can fully trust it as the control element in all my audio gear comparisons. This is an advantage that a pro audio guy has that the typical consumer don't have--because we take this stuff incredibly serious and live and breathe it, as well as spend most of our income on perfecting our studio's signal chain with the goal of the utmost accuracy/neutrality we can afford.
I can tell how your EQ curve will sound just by looking at it, due to the experience I have working with EQ's as a composer/sound designer who has to mix/master his own stuff all the time. But just to indulge your curiosity, I went ahead and replicated your EQ curve, and sure enough, it's really skewed and imbalanced.
Part of learning about accuracy/neutrality is to unlearn all the biases you've built up in your life time before you discovered what accuracy/neutrality really means, and how it's the only standard to judge by. An overwhelming percentage of the population have never heard accurate/neutral audio reproduction their entire lives, and they carry all sorts of biases in their heads--this includes a large percentage of members here at head-fi--people who pride themselves on knowing better than the average folk. Even something as simple as the common fallacy of referring to live performances as a benchmark of accuracy/neutrality is rampant around here, because people just don't know any better, as they are not audio professionals.
It takes a lot of time, money, hard work and a mountain of patience to research, purchase, borrow, rent, learn, test, compare, and refine to the point where you gain adequate understanding to really know what the hell you're doing, and be able to engage in these types of discussions with an authoritative confidence that you are not grossly mistaken. I can't tell you how many weekends I've spent driving around to different pro audio shops to do comparison tests for the entire day in the last decade or so, and the time I spent reading books on audio mixing, mastering, studio design, construction, acoustic design, and then applying all that knowledge to real world situations where I'm putting all that theory to practice in my own productions, as well using that knowledge to test audio gear.
If you're serious about attaining the next level of understanding, just buckle down and learn, starting from the basics of audio production. I can give you some excellent recommendations for books that have audio CD's if you're interested.