Icons and illustrations for our travel website

I'm a very small non-profit project called MojeVARY, which shows what beautiful places there are in the Carlsbad region of the Czech Republic. This region is doing very badly with a young population, but it offers a huge natural heritage that is really little known and we are trying to change that. We are looking for pro bono collaboration on very few icons and at the same time one illustration for our footer on the website in the outline design of the monuments in the region.

Currently, the assignment is:

3 icons (nature, castle tower, lookout tower)
Illustration for the footer with the theme in the design, which is attached (we will document what monuments we want to design)