Anyone know anything about paintings?

[Leon103]

If it's a Lithograph, perhaps.
Tick the "paintings" and it's significantly more than that.
https://www.invaluable.com/artist/stobart-john-7zd03kv208/sold-at-auction-prices/?srsltid=AfmBOoq9xTycsItdFkJFy61Iv1eX0u9QDB-6_BO1Fn9BFRfdpZL0N2vq&Fine Art=Painting

All estimates, plenty at below $500