Thank you for submitting your painting for appraisal. First of all, this can only be an attempt, there are no auction records for your works of art listed and therefore no market value can be established. Basically you can ask whatever you want for your paintings. From what I can see you managed to convey a dreamlike atmosphere in a metaphysical landscape, the human proportions are correct, the composition is balanced. You should exhibit your paintings, get listed on websites listing auction results and develop a recognizable trademark.