About the only thing I might point out is, with the speakers oriented like that, you are throwing a significant amount of the horn at the ceiling and the floor! And losing a fair bit of side to side coverage. Particularly with the horn going into the ceiling, it is going to reflect back and alter the sound considerably, and diffuse the directional cues from the stereo mix.
Try orienting them back upright (with something under the front to tilt them up again a hair) and see if that doesn't tame the room a bit. If less of your horn isn't being wasted going into the floor of going straight up into the ceiling, you might find you don't need any extra highs, and can turn off any EQ (that always mucks the sound up somewhat).
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An arranger is just a tool. What matters is what you build with it..!