Hi,
my name is Tom. I have 20 years of experience as graphic designer and prepress expert and educator.
I do not make "cartoon" logotypes, I make logotypes "by the book", they are simple, and easy to apply on any media, and work well on light or dark backgrounds, and as well, as grayscale. Something like big Brand Logo(types), like Adidas, Nike, Apple, Amazon, McDonalds etc. You can see some of them on my profile page. Despite the logotype, I make the whole visual identity package (color scheme, typography and corresponding letterhead, envelope etc).
I will provide all necessary file formats and versions (color, grayscale, positive and negative).
Additionally if you wish the applying guide/book of standards, which I highly recommend, the price is higher. But everything is subject to negotiation
If you have any questions, feel free to contact me and ask.