I really want to make some art for lo's nursery. I already have the design and have sketched it out in a paint program, but I have no clue how to create it in a program that I can print high res images from.

What program can I use that isn't super complicated?

Any tips?

I might just end up painting it if I can't figure out a digital option but one of the three will be all text and I think it will be hard to make it look nice...

Help please!!