for a presentation its not needing to be perfect. I think the picture you chose is important... afterall you want to reflect on the fact the car is
orange not black.. rather than a nice scenery picture like some other suggested.
so having the orange standing out on a black background works best.
the only criticism id give you really is to make it more simple. theres too much goin on in the picture. try making more space.
stick to the old
less is more
keep the font size of the quotation, and how times have changed rougly the same... but make the other stuff smaller, thats not the important text, the important text is your slogan!
as for the rhino thing, i like the fact you've just used the red in there. id fiddle about with the contrast etc. on photoshop a bit to make the rhino picture a wee bit more dramatic though. darker probably, itll make the whole thing seem all sad.. and the red will defo. stand out.
hope this helps