How's my schedule?

<p>So far I've taken pretty all enriched classes (besides Gym) and I'm a Senior this year. I have all A's save one B in freshman year and I'm shooting pretty high college-wise.</p>

<p>My schedule this year:
1 - Introduction to Engineering (counts as an enriched class I believe)
2 - American Government (basic, but a required class); Economics Enriched (also required)
3 - AP Calculus
4 - IB English II
5 - Art History (I think this gives you some basic humanities credits, but probably not at the schools I want to go to)
6 - Physics II Enriched (literally is the same thing as AP Physics, but my teacher believes it's foolish to waive out of Physics if you're going to be an engineer, so he dropped the AP title)
7 - IB Psychology</p>

<p>I think all my classes are fairly challenging save period 5. Is it unwise to take the Art History? I know it's just one class, but I'm wondering if this will mar my credentials for college applications in some way. I believe I could switch to IB Biology, but I would only take the first year of it, and it's a two year course. Also, I just feel like the rest of my schedule is already pretty formidable and I wonder whether I would end up exhausted from adding another IB class to the mix.</p>