Nice Work! I think the kit works fine with the materials. Some might not think it's as high end as a statesman or emperor, but I think the simple clean look works great with very subtle material like ivory and gemsbok. Did you do a ca finish on it? I've never had any luck with ca over gemsbok, and although it does work on ivory (That looks like hippo, or maybe warthog?) I don't use it anymore because it seals the ivory, and doesn't allow you to treat it with oil to (hopefully) delay the (almost) inevitable cracking. I borrowed a trick from Bo Randall back in my knifemaking days with ivory and wrapped ivory handles in a white cotton cloth soaked in cotton seed oil, then sealed with saran wrap, and it has worked fine for me with ivory pens so far. He stored his this way indefinately, but for pens I just do it for a few days, and advise the new owners to repeat every year or so.
Cracked ivory can be repaired with powdered sugar and thin ca, cracked gemsbok can be treated with black ink from a sharpie (to cover the brass tube) and then filled with med ca and repolished. I personally don't consider cracks in either of these materials to be defects, it's just a fact of life. I look at it as normal wear and tear, carefully maintained.