I sent prices to the client and did't receive a feedback.
What is the best way to ask, is my price ok for them?
How do you think a phrase like "How do you like our prices?" would work?
Don't say anything.
Instigating any further communication about pricing puts you in a very weak negotiation position. Never apologize for or question your pricing to a client.
If anything, ask if the client is ready to move forward and provide the non-refundable deposit.
Always assume your pricing is accepted unless told otherwise. But, of course, don't begin any work until the client gives the green light, provides a deposit, and signs the contract.